Commit | Line | Data |
---|---|---|
e9e23e23 | 1 | /* Utility and Unix shadow routines for GNU Emacs on the Microsoft W32 API. |
0b5538bd | 2 | Copyright (C) 1994, 1995, 2000, 2001, 2002, 2003, 2004, |
8cabe764 | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
95ed0025 | 4 | |
3b7ad313 EN |
5 | This file is part of GNU Emacs. |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
3b7ad313 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
3b7ad313 EN |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
95ed0025 | 19 | |
9ec0b715 | 20 | /* |
95ed0025 RS |
21 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 |
22 | */ | |
76b3903d | 23 | #include <stddef.h> /* for offsetof */ |
95ed0025 RS |
24 | #include <stdlib.h> |
25 | #include <stdio.h> | |
26 | #include <io.h> | |
480b0c5b | 27 | #include <errno.h> |
95ed0025 RS |
28 | #include <fcntl.h> |
29 | #include <ctype.h> | |
480b0c5b | 30 | #include <signal.h> |
b3308d2e | 31 | #include <sys/file.h> |
480b0c5b | 32 | #include <sys/time.h> |
16bb7578 | 33 | #include <sys/utime.h> |
22189f79 | 34 | #include <mbstring.h> /* for _mbspbrk */ |
480b0c5b GV |
35 | |
36 | /* must include CRT headers *before* config.h */ | |
4838e624 PJ |
37 | |
38 | #ifdef HAVE_CONFIG_H | |
39 | #include <config.h> | |
40 | #endif | |
41 | ||
480b0c5b GV |
42 | #undef access |
43 | #undef chdir | |
44 | #undef chmod | |
45 | #undef creat | |
46 | #undef ctime | |
47 | #undef fopen | |
48 | #undef link | |
49 | #undef mkdir | |
50 | #undef mktemp | |
51 | #undef open | |
52 | #undef rename | |
53 | #undef rmdir | |
54 | #undef unlink | |
55 | ||
56 | #undef close | |
57 | #undef dup | |
58 | #undef dup2 | |
59 | #undef pipe | |
60 | #undef read | |
61 | #undef write | |
95ed0025 | 62 | |
d8fcc1b9 AI |
63 | #undef strerror |
64 | ||
95ed0025 | 65 | #include "lisp.h" |
95ed0025 RS |
66 | |
67 | #include <pwd.h> | |
3d19b645 | 68 | #include <grp.h> |
95ed0025 | 69 | |
971bce75 AI |
70 | #ifdef __GNUC__ |
71 | #define _ANONYMOUS_UNION | |
72 | #define _ANONYMOUS_STRUCT | |
73 | #endif | |
480b0c5b | 74 | #include <windows.h> |
634d3003 | 75 | #include <lmcons.h> |
2d5324c5 | 76 | #include <shlobj.h> |
00b3b7b3 | 77 | |
480b0c5b GV |
78 | #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */ |
79 | #include <sys/socket.h> | |
80 | #undef socket | |
81 | #undef bind | |
82 | #undef connect | |
83 | #undef htons | |
84 | #undef ntohs | |
85 | #undef inet_addr | |
86 | #undef gethostname | |
87 | #undef gethostbyname | |
88 | #undef getservbyname | |
ecd270eb | 89 | #undef getpeername |
380961a6 | 90 | #undef shutdown |
962955c5 JR |
91 | #undef setsockopt |
92 | #undef listen | |
93 | #undef getsockname | |
94 | #undef accept | |
95 | #undef recvfrom | |
96 | #undef sendto | |
480b0c5b | 97 | #endif |
00b3b7b3 | 98 | |
489f9371 | 99 | #include "w32.h" |
480b0c5b | 100 | #include "ndir.h" |
489f9371 | 101 | #include "w32heap.h" |
253574a6 | 102 | #include "systime.h" |
f481eb31 | 103 | #include "dispextern.h" /* for xstrcasecmp */ |
253574a6 | 104 | |
d888760c GM |
105 | /* For serial_configure() and serial_open() */ |
106 | #include "process.h" | |
107 | /* From process.c */ | |
108 | extern Lisp_Object QCport, QCspeed, QCprocess; | |
109 | extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
110 | extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
111 | ||
2d5324c5 JR |
112 | typedef HRESULT (WINAPI * ShGetFolderPath_fn) |
113 | (IN HWND, IN int, IN HANDLE, IN DWORD, OUT char *); | |
114 | ||
9785d95b | 115 | void globals_of_w32 (); |
8aaaec6b | 116 | static DWORD get_rid (PSID); |
9785d95b | 117 | |
76b3903d GV |
118 | extern Lisp_Object Vw32_downcase_file_names; |
119 | extern Lisp_Object Vw32_generate_fake_inodes; | |
120 | extern Lisp_Object Vw32_get_true_file_attributes; | |
ac0af113 JR |
121 | /* Defined in process.c for its own purpose. */ |
122 | extern Lisp_Object Qlocal; | |
123 | ||
e0c181dd | 124 | extern int w32_num_mouse_buttons; |
76b3903d | 125 | |
18e070ac | 126 | \f |
9d95a291 EZ |
127 | /* Initialization states. |
128 | ||
129 | WARNING: If you add any more such variables for additional APIs, | |
130 | you MUST add initialization for them to globals_of_w32 | |
131 | below. This is because these variables might get set | |
132 | to non-NULL values during dumping, but the dumped Emacs | |
133 | cannot reuse those values, because it could be run on a | |
134 | different version of the OS, where API addresses are | |
135 | different. */ | |
9785d95b BK |
136 | static BOOL g_b_init_is_windows_9x; |
137 | static BOOL g_b_init_open_process_token; | |
138 | static BOOL g_b_init_get_token_information; | |
139 | static BOOL g_b_init_lookup_account_sid; | |
140 | static BOOL g_b_init_get_sid_identifier_authority; | |
c617afce EZ |
141 | static BOOL g_b_init_get_sid_sub_authority; |
142 | static BOOL g_b_init_get_sid_sub_authority_count; | |
8aaaec6b EZ |
143 | static BOOL g_b_init_get_file_security; |
144 | static BOOL g_b_init_get_security_descriptor_owner; | |
145 | static BOOL g_b_init_get_security_descriptor_group; | |
146 | static BOOL g_b_init_is_valid_sid; | |
9785d95b | 147 | |
f60ae425 BK |
148 | /* |
149 | BEGIN: Wrapper functions around OpenProcessToken | |
150 | and other functions in advapi32.dll that are only | |
151 | supported in Windows NT / 2k / XP | |
152 | */ | |
153 | /* ** Function pointer typedefs ** */ | |
154 | typedef BOOL (WINAPI * OpenProcessToken_Proc) ( | |
155 | HANDLE ProcessHandle, | |
156 | DWORD DesiredAccess, | |
157 | PHANDLE TokenHandle); | |
158 | typedef BOOL (WINAPI * GetTokenInformation_Proc) ( | |
159 | HANDLE TokenHandle, | |
160 | TOKEN_INFORMATION_CLASS TokenInformationClass, | |
161 | LPVOID TokenInformation, | |
162 | DWORD TokenInformationLength, | |
163 | PDWORD ReturnLength); | |
74258518 JR |
164 | typedef BOOL (WINAPI * GetProcessTimes_Proc) ( |
165 | HANDLE process_handle, | |
166 | LPFILETIME creation_time, | |
167 | LPFILETIME exit_time, | |
168 | LPFILETIME kernel_time, | |
169 | LPFILETIME user_time); | |
170 | ||
171 | GetProcessTimes_Proc get_process_times_fn = NULL; | |
172 | ||
f60ae425 BK |
173 | #ifdef _UNICODE |
174 | const char * const LookupAccountSid_Name = "LookupAccountSidW"; | |
8aaaec6b | 175 | const char * const GetFileSecurity_Name = "GetFileSecurityW"; |
f60ae425 BK |
176 | #else |
177 | const char * const LookupAccountSid_Name = "LookupAccountSidA"; | |
8aaaec6b | 178 | const char * const GetFileSecurity_Name = "GetFileSecurityA"; |
f60ae425 BK |
179 | #endif |
180 | typedef BOOL (WINAPI * LookupAccountSid_Proc) ( | |
181 | LPCTSTR lpSystemName, | |
182 | PSID Sid, | |
183 | LPTSTR Name, | |
184 | LPDWORD cbName, | |
185 | LPTSTR DomainName, | |
186 | LPDWORD cbDomainName, | |
187 | PSID_NAME_USE peUse); | |
188 | typedef PSID_IDENTIFIER_AUTHORITY (WINAPI * GetSidIdentifierAuthority_Proc) ( | |
189 | PSID pSid); | |
c617afce EZ |
190 | typedef PDWORD (WINAPI * GetSidSubAuthority_Proc) ( |
191 | PSID pSid, | |
192 | DWORD n); | |
193 | typedef PUCHAR (WINAPI * GetSidSubAuthorityCount_Proc) ( | |
194 | PSID pSid); | |
8aaaec6b EZ |
195 | typedef BOOL (WINAPI * GetFileSecurity_Proc) ( |
196 | LPCTSTR lpFileName, | |
197 | SECURITY_INFORMATION RequestedInformation, | |
198 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
199 | DWORD nLength, | |
200 | LPDWORD lpnLengthNeeded); | |
201 | typedef BOOL (WINAPI * GetSecurityDescriptorOwner_Proc) ( | |
202 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
203 | PSID *pOwner, | |
204 | LPBOOL lpbOwnerDefaulted); | |
205 | typedef BOOL (WINAPI * GetSecurityDescriptorGroup_Proc) ( | |
206 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
207 | PSID *pGroup, | |
208 | LPBOOL lpbGroupDefaulted); | |
209 | typedef BOOL (WINAPI * IsValidSid_Proc) ( | |
210 | PSID sid); | |
f60ae425 BK |
211 | |
212 | /* ** A utility function ** */ | |
9bfb11f9 KS |
213 | static BOOL |
214 | is_windows_9x () | |
f60ae425 | 215 | { |
9785d95b | 216 | static BOOL s_b_ret=0; |
f60ae425 | 217 | OSVERSIONINFO os_ver; |
9785d95b | 218 | if (g_b_init_is_windows_9x == 0) |
f60ae425 | 219 | { |
9785d95b BK |
220 | g_b_init_is_windows_9x = 1; |
221 | ZeroMemory(&os_ver, sizeof(OSVERSIONINFO)); | |
222 | os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); | |
223 | if (GetVersionEx (&os_ver)) | |
224 | { | |
225 | s_b_ret = (os_ver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS); | |
226 | } | |
f60ae425 | 227 | } |
9785d95b | 228 | return s_b_ret; |
f60ae425 BK |
229 | } |
230 | ||
74258518 JR |
231 | /* Get total user and system times for get-internal-run-time. |
232 | Returns a list of three integers if the times are provided by the OS | |
233 | (NT derivatives), otherwise it returns the result of current-time. */ | |
234 | Lisp_Object | |
235 | w32_get_internal_run_time () | |
236 | { | |
237 | if (get_process_times_fn) | |
238 | { | |
239 | FILETIME create, exit, kernel, user; | |
240 | HANDLE proc = GetCurrentProcess(); | |
241 | if ((*get_process_times_fn) (proc, &create, &exit, &kernel, &user)) | |
242 | { | |
243 | LARGE_INTEGER user_int, kernel_int, total; | |
244 | int microseconds; | |
245 | user_int.LowPart = user.dwLowDateTime; | |
246 | user_int.HighPart = user.dwHighDateTime; | |
247 | kernel_int.LowPart = kernel.dwLowDateTime; | |
248 | kernel_int.HighPart = kernel.dwHighDateTime; | |
249 | total.QuadPart = user_int.QuadPart + kernel_int.QuadPart; | |
250 | /* FILETIME is 100 nanosecond increments, Emacs only wants | |
251 | microsecond resolution. */ | |
252 | total.QuadPart /= 10; | |
253 | microseconds = total.QuadPart % 1000000; | |
254 | total.QuadPart /= 1000000; | |
255 | ||
256 | /* Sanity check to make sure we can represent the result. */ | |
257 | if (total.HighPart == 0) | |
258 | { | |
259 | int secs = total.LowPart; | |
260 | ||
261 | return list3 (make_number ((secs >> 16) & 0xffff), | |
262 | make_number (secs & 0xffff), | |
263 | make_number (microseconds)); | |
264 | } | |
265 | } | |
266 | } | |
267 | ||
268 | return Fcurrent_time (); | |
269 | } | |
270 | ||
f60ae425 BK |
271 | /* ** The wrapper functions ** */ |
272 | ||
273 | BOOL WINAPI open_process_token ( | |
274 | HANDLE ProcessHandle, | |
275 | DWORD DesiredAccess, | |
276 | PHANDLE TokenHandle) | |
277 | { | |
9785d95b | 278 | static OpenProcessToken_Proc s_pfn_Open_Process_Token = NULL; |
f60ae425 BK |
279 | HMODULE hm_advapi32 = NULL; |
280 | if (is_windows_9x () == TRUE) | |
281 | { | |
282 | return FALSE; | |
283 | } | |
9785d95b BK |
284 | if (g_b_init_open_process_token == 0) |
285 | { | |
286 | g_b_init_open_process_token = 1; | |
287 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
288 | s_pfn_Open_Process_Token = | |
289 | (OpenProcessToken_Proc) GetProcAddress (hm_advapi32, "OpenProcessToken"); | |
290 | } | |
291 | if (s_pfn_Open_Process_Token == NULL) | |
f60ae425 BK |
292 | { |
293 | return FALSE; | |
294 | } | |
295 | return ( | |
9785d95b | 296 | s_pfn_Open_Process_Token ( |
f60ae425 BK |
297 | ProcessHandle, |
298 | DesiredAccess, | |
299 | TokenHandle) | |
300 | ); | |
301 | } | |
302 | ||
303 | BOOL WINAPI get_token_information ( | |
304 | HANDLE TokenHandle, | |
305 | TOKEN_INFORMATION_CLASS TokenInformationClass, | |
306 | LPVOID TokenInformation, | |
307 | DWORD TokenInformationLength, | |
308 | PDWORD ReturnLength) | |
309 | { | |
9785d95b | 310 | static GetTokenInformation_Proc s_pfn_Get_Token_Information = NULL; |
f60ae425 BK |
311 | HMODULE hm_advapi32 = NULL; |
312 | if (is_windows_9x () == TRUE) | |
313 | { | |
314 | return FALSE; | |
315 | } | |
9785d95b BK |
316 | if (g_b_init_get_token_information == 0) |
317 | { | |
318 | g_b_init_get_token_information = 1; | |
319 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
320 | s_pfn_Get_Token_Information = | |
321 | (GetTokenInformation_Proc) GetProcAddress (hm_advapi32, "GetTokenInformation"); | |
322 | } | |
323 | if (s_pfn_Get_Token_Information == NULL) | |
f60ae425 BK |
324 | { |
325 | return FALSE; | |
326 | } | |
327 | return ( | |
9785d95b | 328 | s_pfn_Get_Token_Information ( |
f60ae425 BK |
329 | TokenHandle, |
330 | TokenInformationClass, | |
331 | TokenInformation, | |
332 | TokenInformationLength, | |
333 | ReturnLength) | |
334 | ); | |
335 | } | |
336 | ||
337 | BOOL WINAPI lookup_account_sid ( | |
338 | LPCTSTR lpSystemName, | |
339 | PSID Sid, | |
340 | LPTSTR Name, | |
341 | LPDWORD cbName, | |
342 | LPTSTR DomainName, | |
343 | LPDWORD cbDomainName, | |
344 | PSID_NAME_USE peUse) | |
345 | { | |
9785d95b | 346 | static LookupAccountSid_Proc s_pfn_Lookup_Account_Sid = NULL; |
f60ae425 BK |
347 | HMODULE hm_advapi32 = NULL; |
348 | if (is_windows_9x () == TRUE) | |
349 | { | |
350 | return FALSE; | |
351 | } | |
9785d95b BK |
352 | if (g_b_init_lookup_account_sid == 0) |
353 | { | |
354 | g_b_init_lookup_account_sid = 1; | |
355 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
356 | s_pfn_Lookup_Account_Sid = | |
357 | (LookupAccountSid_Proc) GetProcAddress (hm_advapi32, LookupAccountSid_Name); | |
358 | } | |
359 | if (s_pfn_Lookup_Account_Sid == NULL) | |
f60ae425 BK |
360 | { |
361 | return FALSE; | |
362 | } | |
363 | return ( | |
9785d95b | 364 | s_pfn_Lookup_Account_Sid ( |
f60ae425 BK |
365 | lpSystemName, |
366 | Sid, | |
367 | Name, | |
368 | cbName, | |
369 | DomainName, | |
370 | cbDomainName, | |
371 | peUse) | |
372 | ); | |
373 | } | |
374 | ||
375 | PSID_IDENTIFIER_AUTHORITY WINAPI get_sid_identifier_authority ( | |
376 | PSID pSid) | |
377 | { | |
9785d95b | 378 | static GetSidIdentifierAuthority_Proc s_pfn_Get_Sid_Identifier_Authority = NULL; |
f60ae425 BK |
379 | HMODULE hm_advapi32 = NULL; |
380 | if (is_windows_9x () == TRUE) | |
381 | { | |
382 | return NULL; | |
383 | } | |
9785d95b BK |
384 | if (g_b_init_get_sid_identifier_authority == 0) |
385 | { | |
386 | g_b_init_get_sid_identifier_authority = 1; | |
387 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
388 | s_pfn_Get_Sid_Identifier_Authority = | |
389 | (GetSidIdentifierAuthority_Proc) GetProcAddress ( | |
390 | hm_advapi32, "GetSidIdentifierAuthority"); | |
391 | } | |
392 | if (s_pfn_Get_Sid_Identifier_Authority == NULL) | |
f60ae425 BK |
393 | { |
394 | return NULL; | |
395 | } | |
9785d95b | 396 | return (s_pfn_Get_Sid_Identifier_Authority (pSid)); |
f60ae425 BK |
397 | } |
398 | ||
c617afce EZ |
399 | PDWORD WINAPI get_sid_sub_authority ( |
400 | PSID pSid, | |
401 | DWORD n) | |
402 | { | |
403 | static GetSidSubAuthority_Proc s_pfn_Get_Sid_Sub_Authority = NULL; | |
6811b9f4 | 404 | static DWORD zero = 0U; |
c617afce EZ |
405 | HMODULE hm_advapi32 = NULL; |
406 | if (is_windows_9x () == TRUE) | |
407 | { | |
6811b9f4 | 408 | return &zero; |
c617afce EZ |
409 | } |
410 | if (g_b_init_get_sid_sub_authority == 0) | |
411 | { | |
412 | g_b_init_get_sid_sub_authority = 1; | |
413 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
414 | s_pfn_Get_Sid_Sub_Authority = | |
415 | (GetSidSubAuthority_Proc) GetProcAddress ( | |
416 | hm_advapi32, "GetSidSubAuthority"); | |
417 | } | |
418 | if (s_pfn_Get_Sid_Sub_Authority == NULL) | |
419 | { | |
6811b9f4 | 420 | return &zero; |
c617afce EZ |
421 | } |
422 | return (s_pfn_Get_Sid_Sub_Authority (pSid, n)); | |
423 | } | |
424 | ||
425 | PUCHAR WINAPI get_sid_sub_authority_count ( | |
426 | PSID pSid) | |
427 | { | |
428 | static GetSidSubAuthorityCount_Proc s_pfn_Get_Sid_Sub_Authority_Count = NULL; | |
6811b9f4 | 429 | static UCHAR zero = 0U; |
c617afce EZ |
430 | HMODULE hm_advapi32 = NULL; |
431 | if (is_windows_9x () == TRUE) | |
432 | { | |
6811b9f4 | 433 | return &zero; |
c617afce EZ |
434 | } |
435 | if (g_b_init_get_sid_sub_authority_count == 0) | |
436 | { | |
437 | g_b_init_get_sid_sub_authority_count = 1; | |
438 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
439 | s_pfn_Get_Sid_Sub_Authority_Count = | |
440 | (GetSidSubAuthorityCount_Proc) GetProcAddress ( | |
441 | hm_advapi32, "GetSidSubAuthorityCount"); | |
442 | } | |
443 | if (s_pfn_Get_Sid_Sub_Authority_Count == NULL) | |
444 | { | |
6811b9f4 | 445 | return &zero; |
c617afce EZ |
446 | } |
447 | return (s_pfn_Get_Sid_Sub_Authority_Count (pSid)); | |
448 | } | |
449 | ||
8aaaec6b EZ |
450 | BOOL WINAPI get_file_security ( |
451 | LPCTSTR lpFileName, | |
452 | SECURITY_INFORMATION RequestedInformation, | |
453 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
454 | DWORD nLength, | |
455 | LPDWORD lpnLengthNeeded) | |
456 | { | |
457 | static GetFileSecurity_Proc s_pfn_Get_File_Security = NULL; | |
458 | HMODULE hm_advapi32 = NULL; | |
459 | if (is_windows_9x () == TRUE) | |
460 | { | |
461 | return FALSE; | |
462 | } | |
463 | if (g_b_init_get_file_security == 0) | |
464 | { | |
465 | g_b_init_get_file_security = 1; | |
466 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
467 | s_pfn_Get_File_Security = | |
468 | (GetFileSecurity_Proc) GetProcAddress ( | |
469 | hm_advapi32, GetFileSecurity_Name); | |
470 | } | |
471 | if (s_pfn_Get_File_Security == NULL) | |
472 | { | |
473 | return FALSE; | |
474 | } | |
475 | return (s_pfn_Get_File_Security (lpFileName, RequestedInformation, | |
476 | pSecurityDescriptor, nLength, | |
477 | lpnLengthNeeded)); | |
478 | } | |
479 | ||
480 | BOOL WINAPI get_security_descriptor_owner ( | |
481 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
482 | PSID *pOwner, | |
483 | LPBOOL lpbOwnerDefaulted) | |
484 | { | |
485 | static GetSecurityDescriptorOwner_Proc s_pfn_Get_Security_Descriptor_Owner = NULL; | |
486 | HMODULE hm_advapi32 = NULL; | |
487 | if (is_windows_9x () == TRUE) | |
488 | { | |
489 | return FALSE; | |
490 | } | |
491 | if (g_b_init_get_security_descriptor_owner == 0) | |
492 | { | |
493 | g_b_init_get_security_descriptor_owner = 1; | |
494 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
495 | s_pfn_Get_Security_Descriptor_Owner = | |
496 | (GetSecurityDescriptorOwner_Proc) GetProcAddress ( | |
497 | hm_advapi32, "GetSecurityDescriptorOwner"); | |
498 | } | |
499 | if (s_pfn_Get_Security_Descriptor_Owner == NULL) | |
500 | { | |
501 | return FALSE; | |
502 | } | |
503 | return (s_pfn_Get_Security_Descriptor_Owner (pSecurityDescriptor, pOwner, | |
504 | lpbOwnerDefaulted)); | |
505 | } | |
506 | ||
507 | BOOL WINAPI get_security_descriptor_group ( | |
508 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
509 | PSID *pGroup, | |
510 | LPBOOL lpbGroupDefaulted) | |
511 | { | |
512 | static GetSecurityDescriptorGroup_Proc s_pfn_Get_Security_Descriptor_Group = NULL; | |
513 | HMODULE hm_advapi32 = NULL; | |
514 | if (is_windows_9x () == TRUE) | |
515 | { | |
516 | return FALSE; | |
517 | } | |
518 | if (g_b_init_get_security_descriptor_group == 0) | |
519 | { | |
520 | g_b_init_get_security_descriptor_group = 1; | |
521 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
522 | s_pfn_Get_Security_Descriptor_Group = | |
523 | (GetSecurityDescriptorGroup_Proc) GetProcAddress ( | |
524 | hm_advapi32, "GetSecurityDescriptorGroup"); | |
525 | } | |
526 | if (s_pfn_Get_Security_Descriptor_Group == NULL) | |
527 | { | |
528 | return FALSE; | |
529 | } | |
530 | return (s_pfn_Get_Security_Descriptor_Group (pSecurityDescriptor, pGroup, | |
531 | lpbGroupDefaulted)); | |
532 | } | |
533 | ||
534 | BOOL WINAPI is_valid_sid ( | |
535 | PSID sid) | |
536 | { | |
537 | static IsValidSid_Proc s_pfn_Is_Valid_Sid = NULL; | |
538 | HMODULE hm_advapi32 = NULL; | |
539 | if (is_windows_9x () == TRUE) | |
540 | { | |
541 | return FALSE; | |
542 | } | |
543 | if (g_b_init_is_valid_sid == 0) | |
544 | { | |
545 | g_b_init_is_valid_sid = 1; | |
546 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
547 | s_pfn_Is_Valid_Sid = | |
548 | (IsValidSid_Proc) GetProcAddress ( | |
549 | hm_advapi32, "IsValidSid"); | |
550 | } | |
551 | if (s_pfn_Is_Valid_Sid == NULL) | |
552 | { | |
553 | return FALSE; | |
554 | } | |
555 | return (s_pfn_Is_Valid_Sid (sid)); | |
556 | } | |
557 | ||
f60ae425 BK |
558 | /* |
559 | END: Wrapper functions around OpenProcessToken | |
560 | and other functions in advapi32.dll that are only | |
561 | supported in Windows NT / 2k / XP | |
562 | */ | |
563 | ||
564 | \f | |
18e070ac AI |
565 | /* Equivalent of strerror for W32 error codes. */ |
566 | char * | |
567 | w32_strerror (int error_no) | |
568 | { | |
569 | static char buf[500]; | |
570 | ||
571 | if (error_no == 0) | |
572 | error_no = GetLastError (); | |
573 | ||
574 | buf[0] = '\0'; | |
575 | if (!FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, | |
576 | error_no, | |
577 | 0, /* choose most suitable language */ | |
578 | buf, sizeof (buf), NULL)) | |
579 | sprintf (buf, "w32 error %u", error_no); | |
580 | return buf; | |
581 | } | |
582 | ||
ed91b2ad EZ |
583 | /* Return 1 if P is a valid pointer to an object of size SIZE. Return |
584 | 0 if P is NOT a valid pointer. Return -1 if we cannot validate P. | |
585 | ||
586 | This is called from alloc.c:valid_pointer_p. */ | |
587 | int | |
588 | w32_valid_pointer_p (void *p, int size) | |
589 | { | |
590 | SIZE_T done; | |
591 | HANDLE h = OpenProcess (PROCESS_VM_READ, FALSE, GetCurrentProcessId ()); | |
592 | ||
593 | if (h) | |
594 | { | |
595 | unsigned char *buf = alloca (size); | |
596 | int retval = ReadProcessMemory (h, p, buf, size, &done); | |
597 | ||
598 | CloseHandle (h); | |
599 | return retval; | |
600 | } | |
601 | else | |
602 | return -1; | |
603 | } | |
604 | ||
76b3903d | 605 | static char startup_dir[MAXPATHLEN]; |
00b3b7b3 | 606 | |
95ed0025 | 607 | /* Get the current working directory. */ |
480b0c5b | 608 | char * |
95ed0025 RS |
609 | getwd (char *dir) |
610 | { | |
76b3903d | 611 | #if 0 |
480b0c5b GV |
612 | if (GetCurrentDirectory (MAXPATHLEN, dir) > 0) |
613 | return dir; | |
614 | return NULL; | |
76b3903d GV |
615 | #else |
616 | /* Emacs doesn't actually change directory itself, and we want to | |
617 | force our real wd to be where emacs.exe is to avoid unnecessary | |
618 | conflicts when trying to rename or delete directories. */ | |
619 | strcpy (dir, startup_dir); | |
620 | return dir; | |
621 | #endif | |
95ed0025 RS |
622 | } |
623 | ||
480b0c5b | 624 | #ifndef HAVE_SOCKETS |
95ed0025 RS |
625 | /* Emulate gethostname. */ |
626 | int | |
627 | gethostname (char *buffer, int size) | |
628 | { | |
177c0ea7 | 629 | /* NT only allows small host names, so the buffer is |
95ed0025 RS |
630 | certainly large enough. */ |
631 | return !GetComputerName (buffer, &size); | |
632 | } | |
480b0c5b | 633 | #endif /* HAVE_SOCKETS */ |
95ed0025 RS |
634 | |
635 | /* Emulate getloadavg. */ | |
636 | int | |
637 | getloadavg (double loadavg[], int nelem) | |
638 | { | |
639 | int i; | |
640 | ||
641 | /* A faithful emulation is going to have to be saved for a rainy day. */ | |
177c0ea7 | 642 | for (i = 0; i < nelem; i++) |
95ed0025 RS |
643 | { |
644 | loadavg[i] = 0.0; | |
645 | } | |
646 | return i; | |
647 | } | |
648 | ||
480b0c5b | 649 | /* Emulate getpwuid, getpwnam and others. */ |
95ed0025 | 650 | |
051fe60d GV |
651 | #define PASSWD_FIELD_SIZE 256 |
652 | ||
07f7980a EZ |
653 | static char dflt_passwd_name[PASSWD_FIELD_SIZE]; |
654 | static char dflt_passwd_passwd[PASSWD_FIELD_SIZE]; | |
655 | static char dflt_passwd_gecos[PASSWD_FIELD_SIZE]; | |
656 | static char dflt_passwd_dir[PASSWD_FIELD_SIZE]; | |
657 | static char dflt_passwd_shell[PASSWD_FIELD_SIZE]; | |
95ed0025 | 658 | |
07f7980a | 659 | static struct passwd dflt_passwd = |
95ed0025 | 660 | { |
07f7980a EZ |
661 | dflt_passwd_name, |
662 | dflt_passwd_passwd, | |
95ed0025 RS |
663 | 0, |
664 | 0, | |
665 | 0, | |
07f7980a EZ |
666 | dflt_passwd_gecos, |
667 | dflt_passwd_dir, | |
668 | dflt_passwd_shell, | |
95ed0025 RS |
669 | }; |
670 | ||
07f7980a EZ |
671 | static char dflt_group_name[GNLEN+1]; |
672 | ||
673 | static struct group dflt_group = | |
3d19b645 | 674 | { |
07f7980a EZ |
675 | /* When group information is not available, we return this as the |
676 | group for all files. */ | |
677 | dflt_group_name, | |
678 | 0, | |
3d19b645 LH |
679 | }; |
680 | ||
177c0ea7 JB |
681 | int |
682 | getuid () | |
683 | { | |
07f7980a | 684 | return dflt_passwd.pw_uid; |
480b0c5b GV |
685 | } |
686 | ||
177c0ea7 JB |
687 | int |
688 | geteuid () | |
689 | { | |
480b0c5b GV |
690 | /* I could imagine arguing for checking to see whether the user is |
691 | in the Administrators group and returning a UID of 0 for that | |
692 | case, but I don't know how wise that would be in the long run. */ | |
177c0ea7 | 693 | return getuid (); |
480b0c5b GV |
694 | } |
695 | ||
177c0ea7 JB |
696 | int |
697 | getgid () | |
698 | { | |
07f7980a | 699 | return dflt_passwd.pw_gid; |
480b0c5b GV |
700 | } |
701 | ||
177c0ea7 JB |
702 | int |
703 | getegid () | |
704 | { | |
480b0c5b GV |
705 | return getgid (); |
706 | } | |
707 | ||
95ed0025 RS |
708 | struct passwd * |
709 | getpwuid (int uid) | |
710 | { | |
07f7980a EZ |
711 | if (uid == dflt_passwd.pw_uid) |
712 | return &dflt_passwd; | |
480b0c5b | 713 | return NULL; |
95ed0025 RS |
714 | } |
715 | ||
3d19b645 LH |
716 | struct group * |
717 | getgrgid (gid_t gid) | |
718 | { | |
07f7980a | 719 | return &dflt_group; |
3d19b645 LH |
720 | } |
721 | ||
95ed0025 RS |
722 | struct passwd * |
723 | getpwnam (char *name) | |
724 | { | |
725 | struct passwd *pw; | |
177c0ea7 | 726 | |
95ed0025 RS |
727 | pw = getpwuid (getuid ()); |
728 | if (!pw) | |
729 | return pw; | |
730 | ||
05131107 | 731 | if (xstrcasecmp (name, pw->pw_name)) |
95ed0025 RS |
732 | return NULL; |
733 | ||
734 | return pw; | |
735 | } | |
736 | ||
480b0c5b GV |
737 | void |
738 | init_user_info () | |
95ed0025 | 739 | { |
480b0c5b GV |
740 | /* Find the user's real name by opening the process token and |
741 | looking up the name associated with the user-sid in that token. | |
742 | ||
743 | Use the relative portion of the identifier authority value from | |
744 | the user-sid as the user id value (same for group id using the | |
745 | primary group sid from the process token). */ | |
746 | ||
07f7980a EZ |
747 | char uname[UNLEN+1], gname[GNLEN+1], domain[1025]; |
748 | DWORD ulength = sizeof (uname), dlength = sizeof (domain), trash; | |
749 | DWORD glength = sizeof (gname); | |
10aabbf9 JB |
750 | HANDLE token = NULL; |
751 | SID_NAME_USE user_type; | |
634d3003 EZ |
752 | unsigned char buf[1024]; |
753 | TOKEN_USER user_token; | |
754 | TOKEN_PRIMARY_GROUP group_token; | |
10aabbf9 JB |
755 | |
756 | if (open_process_token (GetCurrentProcess (), TOKEN_QUERY, &token) | |
757 | && get_token_information (token, TokenUser, | |
634d3003 EZ |
758 | (PVOID)buf, sizeof (buf), &trash) |
759 | && (memcpy (&user_token, buf, sizeof (user_token)), | |
07f7980a | 760 | lookup_account_sid (NULL, user_token.User.Sid, uname, &ulength, |
634d3003 | 761 | domain, &dlength, &user_type))) |
d1c1c3d2 | 762 | { |
07f7980a | 763 | strcpy (dflt_passwd.pw_name, uname); |
c617afce | 764 | /* Determine a reasonable uid value. */ |
05131107 | 765 | if (xstrcasecmp ("administrator", uname) == 0) |
480b0c5b | 766 | { |
07f7980a EZ |
767 | dflt_passwd.pw_uid = 500; /* well-known Administrator uid */ |
768 | dflt_passwd.pw_gid = 513; /* well-known None gid */ | |
480b0c5b GV |
769 | } |
770 | else | |
771 | { | |
ce0ee994 EZ |
772 | /* Use the last sub-authority value of the RID, the relative |
773 | portion of the SID, as user/group ID. */ | |
8aaaec6b | 774 | dflt_passwd.pw_uid = get_rid (user_token.User.Sid); |
480b0c5b | 775 | |
8aaaec6b | 776 | /* Get group id and name. */ |
f60ae425 | 777 | if (get_token_information (token, TokenPrimaryGroup, |
634d3003 | 778 | (PVOID)buf, sizeof (buf), &trash)) |
480b0c5b | 779 | { |
634d3003 | 780 | memcpy (&group_token, buf, sizeof (group_token)); |
8aaaec6b | 781 | dflt_passwd.pw_gid = get_rid (group_token.PrimaryGroup); |
07f7980a EZ |
782 | dlength = sizeof (domain); |
783 | if (lookup_account_sid (NULL, group_token.PrimaryGroup, | |
784 | gname, &glength, NULL, &dlength, | |
785 | &user_type)) | |
786 | strcpy (dflt_group_name, gname); | |
480b0c5b GV |
787 | } |
788 | else | |
07f7980a | 789 | dflt_passwd.pw_gid = dflt_passwd.pw_uid; |
480b0c5b GV |
790 | } |
791 | } | |
792 | /* If security calls are not supported (presumably because we | |
10aabbf9 | 793 | are running under Windows 95), fallback to this. */ |
07f7980a | 794 | else if (GetUserName (uname, &ulength)) |
480b0c5b | 795 | { |
07f7980a | 796 | strcpy (dflt_passwd.pw_name, uname); |
05131107 | 797 | if (xstrcasecmp ("administrator", uname) == 0) |
07f7980a | 798 | dflt_passwd.pw_uid = 0; |
480b0c5b | 799 | else |
07f7980a EZ |
800 | dflt_passwd.pw_uid = 123; |
801 | dflt_passwd.pw_gid = dflt_passwd.pw_uid; | |
480b0c5b GV |
802 | } |
803 | else | |
804 | { | |
07f7980a EZ |
805 | strcpy (dflt_passwd.pw_name, "unknown"); |
806 | dflt_passwd.pw_uid = 123; | |
807 | dflt_passwd.pw_gid = 123; | |
d1c1c3d2 | 808 | } |
07f7980a | 809 | dflt_group.gr_gid = dflt_passwd.pw_gid; |
95ed0025 | 810 | |
480b0c5b GV |
811 | /* Ensure HOME and SHELL are defined. */ |
812 | if (getenv ("HOME") == NULL) | |
ca149beb | 813 | abort (); |
480b0c5b | 814 | if (getenv ("SHELL") == NULL) |
ca149beb | 815 | abort (); |
95ed0025 | 816 | |
480b0c5b | 817 | /* Set dir and shell from environment variables. */ |
07f7980a EZ |
818 | strcpy (dflt_passwd.pw_dir, getenv ("HOME")); |
819 | strcpy (dflt_passwd.pw_shell, getenv ("SHELL")); | |
bd4a449f | 820 | |
480b0c5b GV |
821 | if (token) |
822 | CloseHandle (token); | |
95ed0025 RS |
823 | } |
824 | ||
95ed0025 | 825 | int |
480b0c5b | 826 | random () |
95ed0025 | 827 | { |
480b0c5b GV |
828 | /* rand () on NT gives us 15 random bits...hack together 30 bits. */ |
829 | return ((rand () << 15) | rand ()); | |
95ed0025 RS |
830 | } |
831 | ||
95ed0025 | 832 | void |
480b0c5b | 833 | srandom (int seed) |
95ed0025 | 834 | { |
480b0c5b | 835 | srand (seed); |
95ed0025 RS |
836 | } |
837 | ||
76b3903d | 838 | |
cbe39279 RS |
839 | /* Normalize filename by converting all path separators to |
840 | the specified separator. Also conditionally convert upper | |
841 | case path name components to lower case. */ | |
842 | ||
843 | static void | |
844 | normalize_filename (fp, path_sep) | |
845 | register char *fp; | |
846 | char path_sep; | |
847 | { | |
848 | char sep; | |
849 | char *elem; | |
850 | ||
5162ffce MB |
851 | /* Always lower-case drive letters a-z, even if the filesystem |
852 | preserves case in filenames. | |
853 | This is so filenames can be compared by string comparison | |
854 | functions that are case-sensitive. Even case-preserving filesystems | |
855 | do not distinguish case in drive letters. */ | |
856 | if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z') | |
857 | { | |
858 | *fp += 'a' - 'A'; | |
859 | fp += 2; | |
860 | } | |
861 | ||
fbd6baed | 862 | if (NILP (Vw32_downcase_file_names)) |
cbe39279 RS |
863 | { |
864 | while (*fp) | |
865 | { | |
866 | if (*fp == '/' || *fp == '\\') | |
867 | *fp = path_sep; | |
868 | fp++; | |
869 | } | |
870 | return; | |
871 | } | |
872 | ||
873 | sep = path_sep; /* convert to this path separator */ | |
874 | elem = fp; /* start of current path element */ | |
875 | ||
876 | do { | |
877 | if (*fp >= 'a' && *fp <= 'z') | |
878 | elem = 0; /* don't convert this element */ | |
879 | ||
880 | if (*fp == 0 || *fp == ':') | |
881 | { | |
882 | sep = *fp; /* restore current separator (or 0) */ | |
883 | *fp = '/'; /* after conversion of this element */ | |
884 | } | |
885 | ||
886 | if (*fp == '/' || *fp == '\\') | |
887 | { | |
888 | if (elem && elem != fp) | |
889 | { | |
890 | *fp = 0; /* temporary end of string */ | |
891 | _strlwr (elem); /* while we convert to lower case */ | |
892 | } | |
893 | *fp = sep; /* convert (or restore) path separator */ | |
894 | elem = fp + 1; /* next element starts after separator */ | |
895 | sep = path_sep; | |
896 | } | |
897 | } while (*fp++); | |
898 | } | |
899 | ||
480b0c5b | 900 | /* Destructively turn backslashes into slashes. */ |
95ed0025 | 901 | void |
480b0c5b GV |
902 | dostounix_filename (p) |
903 | register char *p; | |
95ed0025 | 904 | { |
cbe39279 | 905 | normalize_filename (p, '/'); |
95ed0025 RS |
906 | } |
907 | ||
480b0c5b | 908 | /* Destructively turn slashes into backslashes. */ |
95ed0025 | 909 | void |
480b0c5b GV |
910 | unixtodos_filename (p) |
911 | register char *p; | |
95ed0025 | 912 | { |
cbe39279 | 913 | normalize_filename (p, '\\'); |
95ed0025 RS |
914 | } |
915 | ||
480b0c5b GV |
916 | /* Remove all CR's that are followed by a LF. |
917 | (From msdos.c...probably should figure out a way to share it, | |
918 | although this code isn't going to ever change.) */ | |
35f0d482 | 919 | int |
480b0c5b GV |
920 | crlf_to_lf (n, buf) |
921 | register int n; | |
922 | register unsigned char *buf; | |
35f0d482 | 923 | { |
480b0c5b GV |
924 | unsigned char *np = buf; |
925 | unsigned char *startp = buf; | |
926 | unsigned char *endp = buf + n; | |
35f0d482 | 927 | |
480b0c5b GV |
928 | if (n == 0) |
929 | return n; | |
930 | while (buf < endp - 1) | |
95ed0025 | 931 | { |
480b0c5b GV |
932 | if (*buf == 0x0d) |
933 | { | |
934 | if (*(++buf) != 0x0a) | |
935 | *np++ = 0x0d; | |
936 | } | |
937 | else | |
938 | *np++ = *buf++; | |
95ed0025 | 939 | } |
480b0c5b GV |
940 | if (buf < endp) |
941 | *np++ = *buf++; | |
942 | return np - startp; | |
95ed0025 RS |
943 | } |
944 | ||
76b3903d GV |
945 | /* Parse the root part of file name, if present. Return length and |
946 | optionally store pointer to char after root. */ | |
947 | static int | |
948 | parse_root (char * name, char ** pPath) | |
949 | { | |
950 | char * start = name; | |
951 | ||
952 | if (name == NULL) | |
953 | return 0; | |
954 | ||
955 | /* find the root name of the volume if given */ | |
956 | if (isalpha (name[0]) && name[1] == ':') | |
957 | { | |
958 | /* skip past drive specifier */ | |
959 | name += 2; | |
960 | if (IS_DIRECTORY_SEP (name[0])) | |
961 | name++; | |
962 | } | |
963 | else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
964 | { | |
965 | int slashes = 2; | |
966 | name += 2; | |
967 | do | |
968 | { | |
969 | if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
970 | break; | |
971 | name++; | |
972 | } | |
973 | while ( *name ); | |
974 | if (IS_DIRECTORY_SEP (name[0])) | |
975 | name++; | |
976 | } | |
977 | ||
978 | if (pPath) | |
979 | *pPath = name; | |
980 | ||
981 | return name - start; | |
982 | } | |
983 | ||
984 | /* Get long base name for name; name is assumed to be absolute. */ | |
985 | static int | |
986 | get_long_basename (char * name, char * buf, int size) | |
987 | { | |
988 | WIN32_FIND_DATA find_data; | |
989 | HANDLE dir_handle; | |
990 | int len = 0; | |
991 | ||
9ab8560d | 992 | /* must be valid filename, no wild cards or other invalid characters */ |
22189f79 | 993 | if (_mbspbrk (name, "*?|<>\"")) |
bb1584c8 RS |
994 | return 0; |
995 | ||
76b3903d GV |
996 | dir_handle = FindFirstFile (name, &find_data); |
997 | if (dir_handle != INVALID_HANDLE_VALUE) | |
998 | { | |
999 | if ((len = strlen (find_data.cFileName)) < size) | |
1000 | memcpy (buf, find_data.cFileName, len + 1); | |
1001 | else | |
1002 | len = 0; | |
1003 | FindClose (dir_handle); | |
1004 | } | |
1005 | return len; | |
1006 | } | |
1007 | ||
1008 | /* Get long name for file, if possible (assumed to be absolute). */ | |
1009 | BOOL | |
1010 | w32_get_long_filename (char * name, char * buf, int size) | |
1011 | { | |
1012 | char * o = buf; | |
1013 | char * p; | |
1014 | char * q; | |
1015 | char full[ MAX_PATH ]; | |
1016 | int len; | |
1017 | ||
1018 | len = strlen (name); | |
1019 | if (len >= MAX_PATH) | |
1020 | return FALSE; | |
1021 | ||
1022 | /* Use local copy for destructive modification. */ | |
1023 | memcpy (full, name, len+1); | |
1024 | unixtodos_filename (full); | |
1025 | ||
1026 | /* Copy root part verbatim. */ | |
1027 | len = parse_root (full, &p); | |
1028 | memcpy (o, full, len); | |
1029 | o += len; | |
4f8ac0b2 | 1030 | *o = '\0'; |
76b3903d GV |
1031 | size -= len; |
1032 | ||
4f8ac0b2 | 1033 | while (p != NULL && *p) |
76b3903d GV |
1034 | { |
1035 | q = p; | |
1036 | p = strchr (q, '\\'); | |
1037 | if (p) *p = '\0'; | |
1038 | len = get_long_basename (full, o, size); | |
1039 | if (len > 0) | |
1040 | { | |
1041 | o += len; | |
1042 | size -= len; | |
1043 | if (p != NULL) | |
1044 | { | |
1045 | *p++ = '\\'; | |
1046 | if (size < 2) | |
1047 | return FALSE; | |
1048 | *o++ = '\\'; | |
1049 | size--; | |
1050 | *o = '\0'; | |
1051 | } | |
1052 | } | |
1053 | else | |
1054 | return FALSE; | |
1055 | } | |
76b3903d GV |
1056 | |
1057 | return TRUE; | |
1058 | } | |
1059 | ||
9d3355d1 GV |
1060 | int |
1061 | is_unc_volume (const char *filename) | |
1062 | { | |
1063 | const char *ptr = filename; | |
1064 | ||
1065 | if (!IS_DIRECTORY_SEP (ptr[0]) || !IS_DIRECTORY_SEP (ptr[1]) || !ptr[2]) | |
1066 | return 0; | |
1067 | ||
22189f79 | 1068 | if (_mbspbrk (ptr + 2, "*?|<>\"\\/")) |
9d3355d1 GV |
1069 | return 0; |
1070 | ||
1071 | return 1; | |
1072 | } | |
76b3903d | 1073 | |
95ed0025 RS |
1074 | /* Routines that are no-ops on NT but are defined to get Emacs to compile. */ |
1075 | ||
177c0ea7 JB |
1076 | int |
1077 | sigsetmask (int signal_mask) | |
1078 | { | |
95ed0025 RS |
1079 | return 0; |
1080 | } | |
1081 | ||
177c0ea7 JB |
1082 | int |
1083 | sigmask (int sig) | |
1084 | { | |
8f900f6e AI |
1085 | return 0; |
1086 | } | |
1087 | ||
177c0ea7 JB |
1088 | int |
1089 | sigblock (int sig) | |
1090 | { | |
95ed0025 RS |
1091 | return 0; |
1092 | } | |
1093 | ||
177c0ea7 JB |
1094 | int |
1095 | sigunblock (int sig) | |
1096 | { | |
8f900f6e AI |
1097 | return 0; |
1098 | } | |
1099 | ||
177c0ea7 JB |
1100 | int |
1101 | setpgrp (int pid, int gid) | |
1102 | { | |
95ed0025 RS |
1103 | return 0; |
1104 | } | |
1105 | ||
177c0ea7 JB |
1106 | int |
1107 | alarm (int seconds) | |
1108 | { | |
95ed0025 RS |
1109 | return 0; |
1110 | } | |
1111 | ||
480b0c5b | 1112 | #define REG_ROOT "SOFTWARE\\GNU\\Emacs" |
f332b293 | 1113 | |
177c0ea7 | 1114 | LPBYTE |
fbd6baed | 1115 | w32_get_resource (key, lpdwtype) |
f332b293 GV |
1116 | char *key; |
1117 | LPDWORD lpdwtype; | |
1118 | { | |
1119 | LPBYTE lpvalue; | |
1120 | HKEY hrootkey = NULL; | |
1121 | DWORD cbData; | |
177c0ea7 JB |
1122 | |
1123 | /* Check both the current user and the local machine to see if | |
f332b293 | 1124 | we have any resources. */ |
177c0ea7 | 1125 | |
f332b293 GV |
1126 | if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
1127 | { | |
1128 | lpvalue = NULL; | |
1129 | ||
177c0ea7 JB |
1130 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS |
1131 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
f332b293 GV |
1132 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) |
1133 | { | |
4da4d9bb | 1134 | RegCloseKey (hrootkey); |
f332b293 GV |
1135 | return (lpvalue); |
1136 | } | |
1137 | ||
70fdbb46 | 1138 | xfree (lpvalue); |
177c0ea7 | 1139 | |
f332b293 | 1140 | RegCloseKey (hrootkey); |
177c0ea7 JB |
1141 | } |
1142 | ||
f332b293 GV |
1143 | if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
1144 | { | |
1145 | lpvalue = NULL; | |
177c0ea7 | 1146 | |
76b3903d GV |
1147 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS |
1148 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
1149 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) | |
f332b293 | 1150 | { |
4da4d9bb | 1151 | RegCloseKey (hrootkey); |
f332b293 GV |
1152 | return (lpvalue); |
1153 | } | |
177c0ea7 | 1154 | |
70fdbb46 | 1155 | xfree (lpvalue); |
177c0ea7 | 1156 | |
f332b293 | 1157 | RegCloseKey (hrootkey); |
177c0ea7 JB |
1158 | } |
1159 | ||
f332b293 GV |
1160 | return (NULL); |
1161 | } | |
1162 | ||
75b08edb GV |
1163 | char *get_emacs_configuration (void); |
1164 | extern Lisp_Object Vsystem_configuration; | |
1165 | ||
f332b293 | 1166 | void |
aa7b87b0 | 1167 | init_environment (char ** argv) |
f332b293 | 1168 | { |
b3308d2e KH |
1169 | static const char * const tempdirs[] = { |
1170 | "$TMPDIR", "$TEMP", "$TMP", "c:/" | |
1171 | }; | |
2d5324c5 | 1172 | |
b3308d2e | 1173 | int i; |
2d5324c5 | 1174 | |
b3308d2e KH |
1175 | const int imax = sizeof (tempdirs) / sizeof (tempdirs[0]); |
1176 | ||
1177 | /* Make sure they have a usable $TMPDIR. Many Emacs functions use | |
1178 | temporary files and assume "/tmp" if $TMPDIR is unset, which | |
1179 | will break on DOS/Windows. Refuse to work if we cannot find | |
1180 | a directory, not even "c:/", usable for that purpose. */ | |
1181 | for (i = 0; i < imax ; i++) | |
1182 | { | |
1183 | const char *tmp = tempdirs[i]; | |
1184 | ||
1185 | if (*tmp == '$') | |
1186 | tmp = getenv (tmp + 1); | |
1187 | /* Note that `access' can lie to us if the directory resides on a | |
1188 | read-only filesystem, like CD-ROM or a write-protected floppy. | |
1189 | The only way to be really sure is to actually create a file and | |
1190 | see if it succeeds. But I think that's too much to ask. */ | |
a302c7ae | 1191 | if (tmp && _access (tmp, D_OK) == 0) |
b3308d2e KH |
1192 | { |
1193 | char * var = alloca (strlen (tmp) + 8); | |
1194 | sprintf (var, "TMPDIR=%s", tmp); | |
aca583b2 | 1195 | _putenv (strdup (var)); |
b3308d2e KH |
1196 | break; |
1197 | } | |
1198 | } | |
1199 | if (i >= imax) | |
1200 | cmd_error_internal | |
1201 | (Fcons (Qerror, | |
1202 | Fcons (build_string ("no usable temporary directories found!!"), | |
1203 | Qnil)), | |
1204 | "While setting TMPDIR: "); | |
1205 | ||
ca149beb AI |
1206 | /* Check for environment variables and use registry settings if they |
1207 | don't exist. Fallback on default values where applicable. */ | |
f332b293 | 1208 | { |
480b0c5b GV |
1209 | int i; |
1210 | LPBYTE lpval; | |
1211 | DWORD dwType; | |
69fb0241 | 1212 | char locale_name[32]; |
2d5324c5 JR |
1213 | struct stat ignored; |
1214 | char default_home[MAX_PATH]; | |
f332b293 | 1215 | |
e00b99c8 | 1216 | static const struct env_entry |
ca149beb AI |
1217 | { |
1218 | char * name; | |
1219 | char * def_value; | |
e00b99c8 | 1220 | } dflt_envvars[] = |
ca149beb AI |
1221 | { |
1222 | {"HOME", "C:/"}, | |
1223 | {"PRELOAD_WINSOCK", NULL}, | |
1224 | {"emacs_dir", "C:/emacs"}, | |
cc14250a | 1225 | {"EMACSLOADPATH", "%emacs_dir%/site-lisp;%emacs_dir%/../site-lisp;%emacs_dir%/lisp;%emacs_dir%/leim"}, |
ca149beb AI |
1226 | {"SHELL", "%emacs_dir%/bin/cmdproxy.exe"}, |
1227 | {"EMACSDATA", "%emacs_dir%/etc"}, | |
1228 | {"EMACSPATH", "%emacs_dir%/bin"}, | |
76b3903d | 1229 | /* We no longer set INFOPATH because Info-default-directory-list |
ca149beb AI |
1230 | is then ignored. */ |
1231 | /* {"INFOPATH", "%emacs_dir%/info"}, */ | |
1232 | {"EMACSDOC", "%emacs_dir%/etc"}, | |
69fb0241 JR |
1233 | {"TERM", "cmd"}, |
1234 | {"LANG", NULL}, | |
480b0c5b GV |
1235 | }; |
1236 | ||
e00b99c8 EZ |
1237 | #define N_ENV_VARS sizeof(dflt_envvars)/sizeof(dflt_envvars[0]) |
1238 | ||
1239 | /* We need to copy dflt_envvars[] and work on the copy because we | |
1240 | don't want the dumped Emacs to inherit the values of | |
1241 | environment variables we saw during dumping (which could be on | |
1242 | a different system). The defaults above must be left intact. */ | |
1243 | struct env_entry env_vars[N_ENV_VARS]; | |
1244 | ||
1245 | for (i = 0; i < N_ENV_VARS; i++) | |
1246 | env_vars[i] = dflt_envvars[i]; | |
1247 | ||
2d5324c5 JR |
1248 | /* For backwards compatibility, check if a .emacs file exists in C:/ |
1249 | If not, then we can try to default to the appdata directory under the | |
1250 | user's profile, which is more likely to be writable. */ | |
1251 | if (stat ("C:/.emacs", &ignored) < 0) | |
1252 | { | |
1253 | HRESULT profile_result; | |
1254 | /* Dynamically load ShGetFolderPath, as it won't exist on versions | |
1255 | of Windows 95 and NT4 that have not been updated to include | |
1256 | MSIE 5. Also we don't link with shell32.dll by default. */ | |
1257 | HMODULE shell32_dll; | |
1258 | ShGetFolderPath_fn get_folder_path; | |
1259 | shell32_dll = GetModuleHandle ("shell32.dll"); | |
1260 | get_folder_path = (ShGetFolderPath_fn) | |
1261 | GetProcAddress (shell32_dll, "SHGetFolderPathA"); | |
1262 | ||
1263 | if (get_folder_path != NULL) | |
1264 | { | |
1265 | profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL, | |
1266 | 0, default_home); | |
1267 | ||
1268 | /* If we can't get the appdata dir, revert to old behaviour. */ | |
1269 | if (profile_result == S_OK) | |
1270 | env_vars[0].def_value = default_home; | |
1271 | } | |
1272 | ||
1273 | /* Unload shell32.dll, it is not needed anymore. */ | |
1274 | FreeLibrary (shell32_dll); | |
1275 | } | |
1276 | ||
69fb0241 JR |
1277 | /* Get default locale info and use it for LANG. */ |
1278 | if (GetLocaleInfo (LOCALE_USER_DEFAULT, | |
1279 | LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP, | |
1280 | locale_name, sizeof (locale_name))) | |
1281 | { | |
e00b99c8 | 1282 | for (i = 0; i < N_ENV_VARS; i++) |
69fb0241 JR |
1283 | { |
1284 | if (strcmp (env_vars[i].name, "LANG") == 0) | |
1285 | { | |
1286 | env_vars[i].def_value = locale_name; | |
1287 | break; | |
1288 | } | |
1289 | } | |
1290 | } | |
1291 | ||
ca149beb AI |
1292 | #define SET_ENV_BUF_SIZE (4 * MAX_PATH) /* to cover EMACSLOADPATH */ |
1293 | ||
1294 | /* Treat emacs_dir specially: set it unconditionally based on our | |
1295 | location, if it appears that we are running from the bin subdir | |
1296 | of a standard installation. */ | |
1297 | { | |
1298 | char *p; | |
1299 | char modname[MAX_PATH]; | |
1300 | ||
1301 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
1302 | abort (); | |
1303 | if ((p = strrchr (modname, '\\')) == NULL) | |
1304 | abort (); | |
1305 | *p = 0; | |
1306 | ||
05131107 | 1307 | if ((p = strrchr (modname, '\\')) && xstrcasecmp (p, "\\bin") == 0) |
ca149beb AI |
1308 | { |
1309 | char buf[SET_ENV_BUF_SIZE]; | |
1310 | ||
1311 | *p = 0; | |
1312 | for (p = modname; *p; p++) | |
1313 | if (*p == '\\') *p = '/'; | |
177c0ea7 | 1314 | |
ca149beb | 1315 | _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname); |
a302c7ae | 1316 | _putenv (strdup (buf)); |
ca149beb | 1317 | } |
950090be JR |
1318 | /* Handle running emacs from the build directory: src/oo-spd/i386/ */ |
1319 | ||
1320 | /* FIXME: should use substring of get_emacs_configuration (). | |
1321 | But I don't think the Windows build supports alpha, mips etc | |
1322 | anymore, so have taken the easy option for now. */ | |
05131107 | 1323 | else if (p && xstrcasecmp (p, "\\i386") == 0) |
950090be JR |
1324 | { |
1325 | *p = 0; | |
1326 | p = strrchr (modname, '\\'); | |
1327 | if (p != NULL) | |
1328 | { | |
1329 | *p = 0; | |
1330 | p = strrchr (modname, '\\'); | |
05131107 | 1331 | if (p && xstrcasecmp (p, "\\src") == 0) |
950090be JR |
1332 | { |
1333 | char buf[SET_ENV_BUF_SIZE]; | |
1334 | ||
1335 | *p = 0; | |
1336 | for (p = modname; *p; p++) | |
1337 | if (*p == '\\') *p = '/'; | |
1338 | ||
1339 | _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname); | |
1340 | _putenv (strdup (buf)); | |
1341 | } | |
1342 | } | |
1343 | } | |
ca149beb AI |
1344 | } |
1345 | ||
e00b99c8 | 1346 | for (i = 0; i < N_ENV_VARS; i++) |
f332b293 | 1347 | { |
ca149beb | 1348 | if (!getenv (env_vars[i].name)) |
480b0c5b | 1349 | { |
ca149beb | 1350 | int dont_free = 0; |
480b0c5b | 1351 | |
aa5ee2a3 JB |
1352 | if ((lpval = w32_get_resource (env_vars[i].name, &dwType)) == NULL |
1353 | /* Also ignore empty environment variables. */ | |
1354 | || *lpval == 0) | |
ca149beb | 1355 | { |
70fdbb46 | 1356 | xfree (lpval); |
ca149beb AI |
1357 | lpval = env_vars[i].def_value; |
1358 | dwType = REG_EXPAND_SZ; | |
1359 | dont_free = 1; | |
480b0c5b | 1360 | } |
ca149beb AI |
1361 | |
1362 | if (lpval) | |
480b0c5b | 1363 | { |
892eb237 | 1364 | char buf1[SET_ENV_BUF_SIZE], buf2[SET_ENV_BUF_SIZE]; |
ca149beb | 1365 | |
892eb237 EZ |
1366 | if (dwType == REG_EXPAND_SZ) |
1367 | ExpandEnvironmentStrings ((LPSTR) lpval, buf1, sizeof(buf1)); | |
ca149beb | 1368 | else if (dwType == REG_SZ) |
892eb237 EZ |
1369 | strcpy (buf1, lpval); |
1370 | if (dwType == REG_EXPAND_SZ || dwType == REG_SZ) | |
ca149beb | 1371 | { |
892eb237 EZ |
1372 | _snprintf (buf2, sizeof(buf2)-1, "%s=%s", env_vars[i].name, |
1373 | buf1); | |
1374 | _putenv (strdup (buf2)); | |
ca149beb | 1375 | } |
f332b293 | 1376 | |
ca149beb AI |
1377 | if (!dont_free) |
1378 | xfree (lpval); | |
1379 | } | |
480b0c5b GV |
1380 | } |
1381 | } | |
1382 | } | |
1383 | ||
75b08edb GV |
1384 | /* Rebuild system configuration to reflect invoking system. */ |
1385 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); | |
1386 | ||
76b3903d GV |
1387 | /* Another special case: on NT, the PATH variable is actually named |
1388 | "Path" although cmd.exe (perhaps NT itself) arranges for | |
1389 | environment variable lookup and setting to be case insensitive. | |
1390 | However, Emacs assumes a fully case sensitive environment, so we | |
1391 | need to change "Path" to "PATH" to match the expectations of | |
1392 | various elisp packages. We do this by the sneaky method of | |
1393 | modifying the string in the C runtime environ entry. | |
1394 | ||
1395 | The same applies to COMSPEC. */ | |
1396 | { | |
1397 | char ** envp; | |
1398 | ||
1399 | for (envp = environ; *envp; envp++) | |
1400 | if (_strnicmp (*envp, "PATH=", 5) == 0) | |
1401 | memcpy (*envp, "PATH=", 5); | |
1402 | else if (_strnicmp (*envp, "COMSPEC=", 8) == 0) | |
1403 | memcpy (*envp, "COMSPEC=", 8); | |
1404 | } | |
1405 | ||
1406 | /* Remember the initial working directory for getwd, then make the | |
1407 | real wd be the location of emacs.exe to avoid conflicts when | |
1408 | renaming or deleting directories. (We also don't call chdir when | |
1409 | running subprocesses for the same reason.) */ | |
1410 | if (!GetCurrentDirectory (MAXPATHLEN, startup_dir)) | |
1411 | abort (); | |
1412 | ||
1413 | { | |
1414 | char *p; | |
aa7b87b0 | 1415 | static char modname[MAX_PATH]; |
76b3903d GV |
1416 | |
1417 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
1418 | abort (); | |
1419 | if ((p = strrchr (modname, '\\')) == NULL) | |
1420 | abort (); | |
1421 | *p = 0; | |
1422 | ||
1423 | SetCurrentDirectory (modname); | |
aa7b87b0 AI |
1424 | |
1425 | /* Ensure argv[0] has the full path to Emacs. */ | |
1426 | *p = '\\'; | |
1427 | argv[0] = modname; | |
76b3903d GV |
1428 | } |
1429 | ||
20af4831 JR |
1430 | /* Determine if there is a middle mouse button, to allow parse_button |
1431 | to decide whether right mouse events should be mouse-2 or | |
1432 | mouse-3. */ | |
e0c181dd | 1433 | w32_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS); |
20af4831 | 1434 | |
480b0c5b GV |
1435 | init_user_info (); |
1436 | } | |
1437 | ||
bf794306 EZ |
1438 | char * |
1439 | emacs_root_dir (void) | |
1440 | { | |
1441 | static char root_dir[FILENAME_MAX]; | |
1442 | const char *p; | |
1443 | ||
1444 | p = getenv ("emacs_dir"); | |
1445 | if (p == NULL) | |
1446 | abort (); | |
1447 | strcpy (root_dir, p); | |
1448 | root_dir[parse_root (root_dir, NULL)] = '\0'; | |
1449 | dostounix_filename (root_dir); | |
1450 | return root_dir; | |
1451 | } | |
1452 | ||
480b0c5b GV |
1453 | /* We don't have scripts to automatically determine the system configuration |
1454 | for Emacs before it's compiled, and we don't want to have to make the | |
1455 | user enter it, so we define EMACS_CONFIGURATION to invoke this runtime | |
1456 | routine. */ | |
1457 | ||
480b0c5b GV |
1458 | char * |
1459 | get_emacs_configuration (void) | |
1460 | { | |
1461 | char *arch, *oem, *os; | |
c5247da2 | 1462 | int build_num; |
a302c7ae | 1463 | static char configuration_buffer[32]; |
480b0c5b GV |
1464 | |
1465 | /* Determine the processor type. */ | |
177c0ea7 | 1466 | switch (get_processor_type ()) |
480b0c5b GV |
1467 | { |
1468 | ||
1469 | #ifdef PROCESSOR_INTEL_386 | |
1470 | case PROCESSOR_INTEL_386: | |
1471 | case PROCESSOR_INTEL_486: | |
1472 | case PROCESSOR_INTEL_PENTIUM: | |
1473 | arch = "i386"; | |
1474 | break; | |
1475 | #endif | |
1476 | ||
480b0c5b GV |
1477 | #ifdef PROCESSOR_MIPS_R2000 |
1478 | case PROCESSOR_MIPS_R2000: | |
1479 | case PROCESSOR_MIPS_R3000: | |
1480 | case PROCESSOR_MIPS_R4000: | |
1481 | arch = "mips"; | |
1482 | break; | |
1483 | #endif | |
1484 | ||
1485 | #ifdef PROCESSOR_ALPHA_21064 | |
1486 | case PROCESSOR_ALPHA_21064: | |
1487 | arch = "alpha"; | |
1488 | break; | |
1489 | #endif | |
1490 | ||
1491 | default: | |
1492 | arch = "unknown"; | |
1493 | break; | |
f332b293 | 1494 | } |
480b0c5b | 1495 | |
a302c7ae AI |
1496 | /* Use the OEM field to reflect the compiler/library combination. */ |
1497 | #ifdef _MSC_VER | |
1498 | #define COMPILER_NAME "msvc" | |
1499 | #else | |
1500 | #ifdef __GNUC__ | |
1501 | #define COMPILER_NAME "mingw" | |
1502 | #else | |
1503 | #define COMPILER_NAME "unknown" | |
1504 | #endif | |
1505 | #endif | |
1506 | oem = COMPILER_NAME; | |
480b0c5b | 1507 | |
c5247da2 GV |
1508 | switch (osinfo_cache.dwPlatformId) { |
1509 | case VER_PLATFORM_WIN32_NT: | |
1510 | os = "nt"; | |
1511 | build_num = osinfo_cache.dwBuildNumber; | |
1512 | break; | |
1513 | case VER_PLATFORM_WIN32_WINDOWS: | |
1514 | if (osinfo_cache.dwMinorVersion == 0) { | |
1515 | os = "windows95"; | |
1516 | } else { | |
1517 | os = "windows98"; | |
1518 | } | |
1519 | build_num = LOWORD (osinfo_cache.dwBuildNumber); | |
1520 | break; | |
1521 | case VER_PLATFORM_WIN32s: | |
1522 | /* Not supported, should not happen. */ | |
1523 | os = "windows32s"; | |
1524 | build_num = LOWORD (osinfo_cache.dwBuildNumber); | |
1525 | break; | |
1526 | default: | |
1527 | os = "unknown"; | |
1528 | build_num = 0; | |
1529 | break; | |
1530 | } | |
1531 | ||
1532 | if (osinfo_cache.dwPlatformId == VER_PLATFORM_WIN32_NT) { | |
1533 | sprintf (configuration_buffer, "%s-%s-%s%d.%d.%d", arch, oem, os, | |
1534 | get_w32_major_version (), get_w32_minor_version (), build_num); | |
1535 | } else { | |
1536 | sprintf (configuration_buffer, "%s-%s-%s.%d", arch, oem, os, build_num); | |
1537 | } | |
480b0c5b | 1538 | |
480b0c5b | 1539 | return configuration_buffer; |
f332b293 GV |
1540 | } |
1541 | ||
a302c7ae AI |
1542 | char * |
1543 | get_emacs_configuration_options (void) | |
1544 | { | |
1545 | static char options_buffer[256]; | |
1546 | ||
1547 | /* Work out the effective configure options for this build. */ | |
1548 | #ifdef _MSC_VER | |
1549 | #define COMPILER_VERSION "--with-msvc (%d.%02d)", _MSC_VER / 100, _MSC_VER % 100 | |
1550 | #else | |
1551 | #ifdef __GNUC__ | |
1552 | #define COMPILER_VERSION "--with-gcc (%d.%d)", __GNUC__, __GNUC_MINOR__ | |
1553 | #else | |
1554 | #define COMPILER_VERSION "" | |
1555 | #endif | |
1556 | #endif | |
1557 | ||
1558 | sprintf (options_buffer, COMPILER_VERSION); | |
1559 | #ifdef EMACSDEBUG | |
1560 | strcat (options_buffer, " --no-opt"); | |
1561 | #endif | |
1562 | #ifdef USER_CFLAGS | |
1563 | strcat (options_buffer, " --cflags"); | |
1564 | strcat (options_buffer, USER_CFLAGS); | |
1565 | #endif | |
1566 | #ifdef USER_LDFLAGS | |
1567 | strcat (options_buffer, " --ldflags"); | |
1568 | strcat (options_buffer, USER_LDFLAGS); | |
1569 | #endif | |
1570 | return options_buffer; | |
1571 | } | |
1572 | ||
1573 | ||
35f0d482 KH |
1574 | #include <sys/timeb.h> |
1575 | ||
1576 | /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */ | |
177c0ea7 | 1577 | void |
35f0d482 KH |
1578 | gettimeofday (struct timeval *tv, struct timezone *tz) |
1579 | { | |
6e602566 | 1580 | struct _timeb tb; |
35f0d482 KH |
1581 | _ftime (&tb); |
1582 | ||
1583 | tv->tv_sec = tb.time; | |
1584 | tv->tv_usec = tb.millitm * 1000L; | |
177c0ea7 | 1585 | if (tz) |
35f0d482 KH |
1586 | { |
1587 | tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */ | |
1588 | tz->tz_dsttime = tb.dstflag; /* type of dst correction */ | |
1589 | } | |
1590 | } | |
35f0d482 | 1591 | |
480b0c5b | 1592 | /* ------------------------------------------------------------------------- */ |
fbd6baed | 1593 | /* IO support and wrapper functions for W32 API. */ |
480b0c5b | 1594 | /* ------------------------------------------------------------------------- */ |
95ed0025 | 1595 | |
480b0c5b | 1596 | /* Place a wrapper around the MSVC version of ctime. It returns NULL |
177c0ea7 | 1597 | on network directories, so we handle that case here. |
480b0c5b GV |
1598 | (Ulrich Leodolter, 1/11/95). */ |
1599 | char * | |
1600 | sys_ctime (const time_t *t) | |
1601 | { | |
1602 | char *str = (char *) ctime (t); | |
1603 | return (str ? str : "Sun Jan 01 00:00:00 1970"); | |
1604 | } | |
1605 | ||
1606 | /* Emulate sleep...we could have done this with a define, but that | |
1607 | would necessitate including windows.h in the files that used it. | |
1608 | This is much easier. */ | |
1609 | void | |
1610 | sys_sleep (int seconds) | |
1611 | { | |
1612 | Sleep (seconds * 1000); | |
1613 | } | |
1614 | ||
76b3903d | 1615 | /* Internal MSVC functions for low-level descriptor munging */ |
480b0c5b GV |
1616 | extern int __cdecl _set_osfhnd (int fd, long h); |
1617 | extern int __cdecl _free_osfhnd (int fd); | |
1618 | ||
1619 | /* parallel array of private info on file handles */ | |
1620 | filedesc fd_info [ MAXDESC ]; | |
1621 | ||
76b3903d GV |
1622 | typedef struct volume_info_data { |
1623 | struct volume_info_data * next; | |
1624 | ||
1625 | /* time when info was obtained */ | |
1626 | DWORD timestamp; | |
1627 | ||
1628 | /* actual volume info */ | |
1629 | char * root_dir; | |
480b0c5b GV |
1630 | DWORD serialnum; |
1631 | DWORD maxcomp; | |
1632 | DWORD flags; | |
76b3903d GV |
1633 | char * name; |
1634 | char * type; | |
1635 | } volume_info_data; | |
1636 | ||
1637 | /* Global referenced by various functions. */ | |
1638 | static volume_info_data volume_info; | |
1639 | ||
1640 | /* Vector to indicate which drives are local and fixed (for which cached | |
1641 | data never expires). */ | |
1642 | static BOOL fixed_drives[26]; | |
1643 | ||
1644 | /* Consider cached volume information to be stale if older than 10s, | |
1645 | at least for non-local drives. Info for fixed drives is never stale. */ | |
1646 | #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' ) | |
1647 | #define VOLINFO_STILL_VALID( root_dir, info ) \ | |
1648 | ( ( isalpha (root_dir[0]) && \ | |
1649 | fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \ | |
1650 | || GetTickCount () - info->timestamp < 10000 ) | |
1651 | ||
1652 | /* Cache support functions. */ | |
1653 | ||
1654 | /* Simple linked list with linear search is sufficient. */ | |
1655 | static volume_info_data *volume_cache = NULL; | |
1656 | ||
1657 | static volume_info_data * | |
1658 | lookup_volume_info (char * root_dir) | |
1659 | { | |
1660 | volume_info_data * info; | |
1661 | ||
1662 | for (info = volume_cache; info; info = info->next) | |
05131107 | 1663 | if (xstrcasecmp (info->root_dir, root_dir) == 0) |
76b3903d GV |
1664 | break; |
1665 | return info; | |
1666 | } | |
1667 | ||
1668 | static void | |
1669 | add_volume_info (char * root_dir, volume_info_data * info) | |
1670 | { | |
a302c7ae | 1671 | info->root_dir = xstrdup (root_dir); |
76b3903d GV |
1672 | info->next = volume_cache; |
1673 | volume_cache = info; | |
1674 | } | |
1675 | ||
1676 | ||
1677 | /* Wrapper for GetVolumeInformation, which uses caching to avoid | |
1678 | performance penalty (~2ms on 486 for local drives, 7.5ms for local | |
1679 | cdrom drive, ~5-10ms or more for remote drives on LAN). */ | |
1680 | volume_info_data * | |
1681 | GetCachedVolumeInformation (char * root_dir) | |
1682 | { | |
1683 | volume_info_data * info; | |
1684 | char default_root[ MAX_PATH ]; | |
1685 | ||
1686 | /* NULL for root_dir means use root from current directory. */ | |
1687 | if (root_dir == NULL) | |
1688 | { | |
1689 | if (GetCurrentDirectory (MAX_PATH, default_root) == 0) | |
1690 | return NULL; | |
1691 | parse_root (default_root, &root_dir); | |
1692 | *root_dir = 0; | |
1693 | root_dir = default_root; | |
1694 | } | |
1695 | ||
1696 | /* Local fixed drives can be cached permanently. Removable drives | |
1697 | cannot be cached permanently, since the volume name and serial | |
1698 | number (if nothing else) can change. Remote drives should be | |
1699 | treated as if they are removable, since there is no sure way to | |
1700 | tell whether they are or not. Also, the UNC association of drive | |
1701 | letters mapped to remote volumes can be changed at any time (even | |
1702 | by other processes) without notice. | |
177c0ea7 | 1703 | |
76b3903d GV |
1704 | As a compromise, so we can benefit from caching info for remote |
1705 | volumes, we use a simple expiry mechanism to invalidate cache | |
1706 | entries that are more than ten seconds old. */ | |
1707 | ||
1708 | #if 0 | |
1709 | /* No point doing this, because WNetGetConnection is even slower than | |
1710 | GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW, | |
1711 | GetDriveType is about the only call of this type which does not | |
1712 | involve network access, and so is extremely quick). */ | |
1713 | ||
1714 | /* Map drive letter to UNC if remote. */ | |
1715 | if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] ) | |
1716 | { | |
1717 | char remote_name[ 256 ]; | |
1718 | char drive[3] = { root_dir[0], ':' }; | |
1719 | ||
1720 | if (WNetGetConnection (drive, remote_name, sizeof (remote_name)) | |
1721 | == NO_ERROR) | |
1722 | /* do something */ ; | |
1723 | } | |
1724 | #endif | |
1725 | ||
1726 | info = lookup_volume_info (root_dir); | |
1727 | ||
1728 | if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info)) | |
1729 | { | |
1730 | char name[ 256 ]; | |
1731 | DWORD serialnum; | |
1732 | DWORD maxcomp; | |
1733 | DWORD flags; | |
1734 | char type[ 256 ]; | |
1735 | ||
1736 | /* Info is not cached, or is stale. */ | |
1737 | if (!GetVolumeInformation (root_dir, | |
1738 | name, sizeof (name), | |
1739 | &serialnum, | |
1740 | &maxcomp, | |
1741 | &flags, | |
1742 | type, sizeof (type))) | |
1743 | return NULL; | |
1744 | ||
1745 | /* Cache the volume information for future use, overwriting existing | |
1746 | entry if present. */ | |
1747 | if (info == NULL) | |
1748 | { | |
1749 | info = (volume_info_data *) xmalloc (sizeof (volume_info_data)); | |
1750 | add_volume_info (root_dir, info); | |
1751 | } | |
1752 | else | |
1753 | { | |
a302c7ae AI |
1754 | xfree (info->name); |
1755 | xfree (info->type); | |
76b3903d GV |
1756 | } |
1757 | ||
a302c7ae | 1758 | info->name = xstrdup (name); |
76b3903d GV |
1759 | info->serialnum = serialnum; |
1760 | info->maxcomp = maxcomp; | |
1761 | info->flags = flags; | |
a302c7ae | 1762 | info->type = xstrdup (type); |
76b3903d GV |
1763 | info->timestamp = GetTickCount (); |
1764 | } | |
1765 | ||
1766 | return info; | |
1767 | } | |
480b0c5b GV |
1768 | |
1769 | /* Get information on the volume where name is held; set path pointer to | |
1770 | start of pathname in name (past UNC header\volume header if present). */ | |
1771 | int | |
1772 | get_volume_info (const char * name, const char ** pPath) | |
95ed0025 | 1773 | { |
480b0c5b GV |
1774 | char temp[MAX_PATH]; |
1775 | char *rootname = NULL; /* default to current volume */ | |
76b3903d | 1776 | volume_info_data * info; |
480b0c5b GV |
1777 | |
1778 | if (name == NULL) | |
1779 | return FALSE; | |
1780 | ||
1781 | /* find the root name of the volume if given */ | |
1782 | if (isalpha (name[0]) && name[1] == ':') | |
1783 | { | |
1784 | rootname = temp; | |
1785 | temp[0] = *name++; | |
1786 | temp[1] = *name++; | |
1787 | temp[2] = '\\'; | |
1788 | temp[3] = 0; | |
1789 | } | |
1790 | else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
95ed0025 | 1791 | { |
480b0c5b GV |
1792 | char *str = temp; |
1793 | int slashes = 4; | |
1794 | rootname = temp; | |
1795 | do | |
1796 | { | |
1797 | if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
1798 | break; | |
1799 | *str++ = *name++; | |
1800 | } | |
1801 | while ( *name ); | |
1802 | ||
480b0c5b GV |
1803 | *str++ = '\\'; |
1804 | *str = 0; | |
95ed0025 | 1805 | } |
480b0c5b GV |
1806 | |
1807 | if (pPath) | |
1808 | *pPath = name; | |
177c0ea7 | 1809 | |
76b3903d GV |
1810 | info = GetCachedVolumeInformation (rootname); |
1811 | if (info != NULL) | |
95ed0025 | 1812 | { |
76b3903d GV |
1813 | /* Set global referenced by other functions. */ |
1814 | volume_info = *info; | |
480b0c5b | 1815 | return TRUE; |
95ed0025 | 1816 | } |
480b0c5b GV |
1817 | return FALSE; |
1818 | } | |
1819 | ||
1820 | /* Determine if volume is FAT format (ie. only supports short 8.3 | |
1821 | names); also set path pointer to start of pathname in name. */ | |
1822 | int | |
1823 | is_fat_volume (const char * name, const char ** pPath) | |
1824 | { | |
1825 | if (get_volume_info (name, pPath)) | |
1826 | return (volume_info.maxcomp == 12); | |
1827 | return FALSE; | |
1828 | } | |
1829 | ||
4d90eee4 | 1830 | /* Map filename to a valid 8.3 name if necessary. */ |
480b0c5b | 1831 | const char * |
fbd6baed | 1832 | map_w32_filename (const char * name, const char ** pPath) |
480b0c5b GV |
1833 | { |
1834 | static char shortname[MAX_PATH]; | |
1835 | char * str = shortname; | |
1836 | char c; | |
480b0c5b | 1837 | char * path; |
76b3903d | 1838 | const char * save_name = name; |
480b0c5b | 1839 | |
ca149beb AI |
1840 | if (strlen (name) >= MAX_PATH) |
1841 | { | |
1842 | /* Return a filename which will cause callers to fail. */ | |
1843 | strcpy (shortname, "?"); | |
1844 | return shortname; | |
1845 | } | |
1846 | ||
a302c7ae | 1847 | if (is_fat_volume (name, (const char **)&path)) /* truncate to 8.3 */ |
95ed0025 | 1848 | { |
480b0c5b GV |
1849 | register int left = 8; /* maximum number of chars in part */ |
1850 | register int extn = 0; /* extension added? */ | |
1851 | register int dots = 2; /* maximum number of dots allowed */ | |
1852 | ||
1853 | while (name < path) | |
1854 | *str++ = *name++; /* skip past UNC header */ | |
1855 | ||
1856 | while ((c = *name++)) | |
1857 | { | |
1858 | switch ( c ) | |
1859 | { | |
1860 | case '\\': | |
1861 | case '/': | |
1862 | *str++ = '\\'; | |
1863 | extn = 0; /* reset extension flags */ | |
1864 | dots = 2; /* max 2 dots */ | |
1865 | left = 8; /* max length 8 for main part */ | |
1866 | break; | |
1867 | case ':': | |
1868 | *str++ = ':'; | |
1869 | extn = 0; /* reset extension flags */ | |
1870 | dots = 2; /* max 2 dots */ | |
1871 | left = 8; /* max length 8 for main part */ | |
1872 | break; | |
1873 | case '.': | |
1874 | if ( dots ) | |
1875 | { | |
1876 | /* Convert path components of the form .xxx to _xxx, | |
1877 | but leave . and .. as they are. This allows .emacs | |
1878 | to be read as _emacs, for example. */ | |
1879 | ||
1880 | if (! *name || | |
1881 | *name == '.' || | |
1882 | IS_DIRECTORY_SEP (*name)) | |
1883 | { | |
1884 | *str++ = '.'; | |
1885 | dots--; | |
1886 | } | |
1887 | else | |
1888 | { | |
1889 | *str++ = '_'; | |
1890 | left--; | |
1891 | dots = 0; | |
1892 | } | |
1893 | } | |
1894 | else if ( !extn ) | |
1895 | { | |
1896 | *str++ = '.'; | |
1897 | extn = 1; /* we've got an extension */ | |
1898 | left = 3; /* 3 chars in extension */ | |
1899 | } | |
1900 | else | |
1901 | { | |
1902 | /* any embedded dots after the first are converted to _ */ | |
1903 | *str++ = '_'; | |
1904 | } | |
1905 | break; | |
1906 | case '~': | |
1907 | case '#': /* don't lose these, they're important */ | |
1908 | if ( ! left ) | |
1909 | str[-1] = c; /* replace last character of part */ | |
1910 | /* FALLTHRU */ | |
1911 | default: | |
1912 | if ( left ) | |
1913 | { | |
1914 | *str++ = tolower (c); /* map to lower case (looks nicer) */ | |
1915 | left--; | |
1916 | dots = 0; /* started a path component */ | |
1917 | } | |
1918 | break; | |
1919 | } | |
1920 | } | |
1921 | *str = '\0'; | |
fc85cb29 RS |
1922 | } |
1923 | else | |
1924 | { | |
1925 | strcpy (shortname, name); | |
1926 | unixtodos_filename (shortname); | |
95ed0025 | 1927 | } |
480b0c5b GV |
1928 | |
1929 | if (pPath) | |
76b3903d | 1930 | *pPath = shortname + (path - save_name); |
480b0c5b | 1931 | |
fc85cb29 | 1932 | return shortname; |
480b0c5b GV |
1933 | } |
1934 | ||
b3308d2e KH |
1935 | static int |
1936 | is_exec (const char * name) | |
1937 | { | |
1938 | char * p = strrchr (name, '.'); | |
1939 | return | |
1940 | (p != NULL | |
05131107 JR |
1941 | && (xstrcasecmp (p, ".exe") == 0 || |
1942 | xstrcasecmp (p, ".com") == 0 || | |
1943 | xstrcasecmp (p, ".bat") == 0 || | |
1944 | xstrcasecmp (p, ".cmd") == 0)); | |
b3308d2e KH |
1945 | } |
1946 | ||
177c0ea7 | 1947 | /* Emulate the Unix directory procedures opendir, closedir, |
76b3903d GV |
1948 | and readdir. We can't use the procedures supplied in sysdep.c, |
1949 | so we provide them here. */ | |
1950 | ||
1951 | struct direct dir_static; /* simulated directory contents */ | |
1952 | static HANDLE dir_find_handle = INVALID_HANDLE_VALUE; | |
1953 | static int dir_is_fat; | |
1954 | static char dir_pathname[MAXPATHLEN+1]; | |
1955 | static WIN32_FIND_DATA dir_find_data; | |
1956 | ||
9d3355d1 GV |
1957 | /* Support shares on a network resource as subdirectories of a read-only |
1958 | root directory. */ | |
1959 | static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE; | |
e0c181dd | 1960 | HANDLE open_unc_volume (const char *); |
9d3355d1 GV |
1961 | char *read_unc_volume (HANDLE, char *, int); |
1962 | void close_unc_volume (HANDLE); | |
1963 | ||
76b3903d GV |
1964 | DIR * |
1965 | opendir (char *filename) | |
1966 | { | |
1967 | DIR *dirp; | |
1968 | ||
1969 | /* Opening is done by FindFirstFile. However, a read is inherent to | |
1970 | this operation, so we defer the open until read time. */ | |
1971 | ||
76b3903d GV |
1972 | if (dir_find_handle != INVALID_HANDLE_VALUE) |
1973 | return NULL; | |
9d3355d1 GV |
1974 | if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
1975 | return NULL; | |
1976 | ||
1977 | if (is_unc_volume (filename)) | |
1978 | { | |
1979 | wnet_enum_handle = open_unc_volume (filename); | |
1980 | if (wnet_enum_handle == INVALID_HANDLE_VALUE) | |
1981 | return NULL; | |
1982 | } | |
1983 | ||
1984 | if (!(dirp = (DIR *) malloc (sizeof (DIR)))) | |
1985 | return NULL; | |
76b3903d GV |
1986 | |
1987 | dirp->dd_fd = 0; | |
1988 | dirp->dd_loc = 0; | |
1989 | dirp->dd_size = 0; | |
1990 | ||
1991 | strncpy (dir_pathname, map_w32_filename (filename, NULL), MAXPATHLEN); | |
1992 | dir_pathname[MAXPATHLEN] = '\0'; | |
1993 | dir_is_fat = is_fat_volume (filename, NULL); | |
1994 | ||
1995 | return dirp; | |
1996 | } | |
1997 | ||
1998 | void | |
1999 | closedir (DIR *dirp) | |
2000 | { | |
2001 | /* If we have a find-handle open, close it. */ | |
2002 | if (dir_find_handle != INVALID_HANDLE_VALUE) | |
2003 | { | |
2004 | FindClose (dir_find_handle); | |
2005 | dir_find_handle = INVALID_HANDLE_VALUE; | |
2006 | } | |
9d3355d1 GV |
2007 | else if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
2008 | { | |
2009 | close_unc_volume (wnet_enum_handle); | |
2010 | wnet_enum_handle = INVALID_HANDLE_VALUE; | |
2011 | } | |
76b3903d GV |
2012 | xfree ((char *) dirp); |
2013 | } | |
2014 | ||
2015 | struct direct * | |
2016 | readdir (DIR *dirp) | |
2017 | { | |
b07103dc EZ |
2018 | int downcase = !NILP (Vw32_downcase_file_names); |
2019 | ||
9d3355d1 GV |
2020 | if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
2021 | { | |
177c0ea7 JB |
2022 | if (!read_unc_volume (wnet_enum_handle, |
2023 | dir_find_data.cFileName, | |
9d3355d1 GV |
2024 | MAX_PATH)) |
2025 | return NULL; | |
2026 | } | |
76b3903d | 2027 | /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */ |
9d3355d1 | 2028 | else if (dir_find_handle == INVALID_HANDLE_VALUE) |
76b3903d GV |
2029 | { |
2030 | char filename[MAXNAMLEN + 3]; | |
2031 | int ln; | |
2032 | ||
2033 | strcpy (filename, dir_pathname); | |
2034 | ln = strlen (filename) - 1; | |
2035 | if (!IS_DIRECTORY_SEP (filename[ln])) | |
2036 | strcat (filename, "\\"); | |
2037 | strcat (filename, "*"); | |
2038 | ||
2039 | dir_find_handle = FindFirstFile (filename, &dir_find_data); | |
2040 | ||
2041 | if (dir_find_handle == INVALID_HANDLE_VALUE) | |
2042 | return NULL; | |
2043 | } | |
2044 | else | |
2045 | { | |
2046 | if (!FindNextFile (dir_find_handle, &dir_find_data)) | |
2047 | return NULL; | |
2048 | } | |
177c0ea7 | 2049 | |
76b3903d GV |
2050 | /* Emacs never uses this value, so don't bother making it match |
2051 | value returned by stat(). */ | |
2052 | dir_static.d_ino = 1; | |
177c0ea7 | 2053 | |
b07103dc EZ |
2054 | strcpy (dir_static.d_name, dir_find_data.cFileName); |
2055 | ||
2056 | /* If the file name in cFileName[] includes `?' characters, it means | |
2057 | the original file name used characters that cannot be represented | |
2058 | by the current ANSI codepage. To avoid total lossage, retrieve | |
2059 | the short 8+3 alias of the long file name. */ | |
2060 | if (_mbspbrk (dir_static.d_name, "?")) | |
2061 | { | |
2062 | strcpy (dir_static.d_name, dir_find_data.cAlternateFileName); | |
2063 | downcase = 1; /* 8+3 aliases are returned in all caps */ | |
2064 | } | |
2065 | dir_static.d_namlen = strlen (dir_static.d_name); | |
76b3903d GV |
2066 | dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 + |
2067 | dir_static.d_namlen - dir_static.d_namlen % 4; | |
177c0ea7 | 2068 | |
192788d7 EZ |
2069 | /* If the file name in cFileName[] includes `?' characters, it means |
2070 | the original file name used characters that cannot be represented | |
2071 | by the current ANSI codepage. To avoid total lossage, retrieve | |
2072 | the short 8+3 alias of the long file name. */ | |
2073 | if (_mbspbrk (dir_find_data.cFileName, "?")) | |
2074 | { | |
2075 | strcpy (dir_static.d_name, dir_find_data.cAlternateFileName); | |
2076 | /* 8+3 aliases are returned in all caps, which could break | |
2077 | various alists that look at filenames' extensions. */ | |
2078 | downcase = 1; | |
2079 | } | |
2080 | else | |
2081 | strcpy (dir_static.d_name, dir_find_data.cFileName); | |
2082 | dir_static.d_namlen = strlen (dir_static.d_name); | |
76b3903d GV |
2083 | if (dir_is_fat) |
2084 | _strlwr (dir_static.d_name); | |
b07103dc | 2085 | else if (downcase) |
76b3903d GV |
2086 | { |
2087 | register char *p; | |
2088 | for (p = dir_static.d_name; *p; p++) | |
2089 | if (*p >= 'a' && *p <= 'z') | |
2090 | break; | |
2091 | if (!*p) | |
2092 | _strlwr (dir_static.d_name); | |
2093 | } | |
177c0ea7 | 2094 | |
76b3903d GV |
2095 | return &dir_static; |
2096 | } | |
2097 | ||
9d3355d1 | 2098 | HANDLE |
e0c181dd | 2099 | open_unc_volume (const char *path) |
9d3355d1 | 2100 | { |
177c0ea7 | 2101 | NETRESOURCE nr; |
9d3355d1 GV |
2102 | HANDLE henum; |
2103 | int result; | |
2104 | ||
177c0ea7 JB |
2105 | nr.dwScope = RESOURCE_GLOBALNET; |
2106 | nr.dwType = RESOURCETYPE_DISK; | |
2107 | nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER; | |
2108 | nr.dwUsage = RESOURCEUSAGE_CONTAINER; | |
2109 | nr.lpLocalName = NULL; | |
6e602566 | 2110 | nr.lpRemoteName = (LPSTR)map_w32_filename (path, NULL); |
177c0ea7 JB |
2111 | nr.lpComment = NULL; |
2112 | nr.lpProvider = NULL; | |
9d3355d1 | 2113 | |
177c0ea7 | 2114 | result = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, |
9d3355d1 GV |
2115 | RESOURCEUSAGE_CONNECTABLE, &nr, &henum); |
2116 | ||
2117 | if (result == NO_ERROR) | |
2118 | return henum; | |
2119 | else | |
2120 | return INVALID_HANDLE_VALUE; | |
2121 | } | |
2122 | ||
2123 | char * | |
2124 | read_unc_volume (HANDLE henum, char *readbuf, int size) | |
2125 | { | |
a302c7ae | 2126 | DWORD count; |
9d3355d1 | 2127 | int result; |
a302c7ae | 2128 | DWORD bufsize = 512; |
9d3355d1 GV |
2129 | char *buffer; |
2130 | char *ptr; | |
2131 | ||
2132 | count = 1; | |
2133 | buffer = alloca (bufsize); | |
2134 | result = WNetEnumResource (wnet_enum_handle, &count, buffer, &bufsize); | |
2135 | if (result != NO_ERROR) | |
2136 | return NULL; | |
2137 | ||
2138 | /* WNetEnumResource returns \\resource\share...skip forward to "share". */ | |
2139 | ptr = ((LPNETRESOURCE) buffer)->lpRemoteName; | |
2140 | ptr += 2; | |
2141 | while (*ptr && !IS_DIRECTORY_SEP (*ptr)) ptr++; | |
2142 | ptr++; | |
2143 | ||
2144 | strncpy (readbuf, ptr, size); | |
2145 | return readbuf; | |
2146 | } | |
2147 | ||
2148 | void | |
2149 | close_unc_volume (HANDLE henum) | |
2150 | { | |
2151 | if (henum != INVALID_HANDLE_VALUE) | |
2152 | WNetCloseEnum (henum); | |
2153 | } | |
2154 | ||
2155 | DWORD | |
e0c181dd | 2156 | unc_volume_file_attributes (const char *path) |
9d3355d1 GV |
2157 | { |
2158 | HANDLE henum; | |
2159 | DWORD attrs; | |
2160 | ||
2161 | henum = open_unc_volume (path); | |
2162 | if (henum == INVALID_HANDLE_VALUE) | |
2163 | return -1; | |
2164 | ||
2165 | attrs = FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY; | |
2166 | ||
2167 | close_unc_volume (henum); | |
2168 | ||
2169 | return attrs; | |
2170 | } | |
2171 | ||
302d7d54 JR |
2172 | /* Ensure a network connection is authenticated. */ |
2173 | static void | |
2174 | logon_network_drive (const char *path) | |
2175 | { | |
2176 | NETRESOURCE resource; | |
2177 | char share[MAX_PATH]; | |
2178 | int i, n_slashes; | |
40a339c8 JR |
2179 | char drive[4]; |
2180 | ||
2181 | sprintf (drive, "%c:\\", path[0]); | |
302d7d54 JR |
2182 | |
2183 | /* Only logon to networked drives. */ | |
40a339c8 JR |
2184 | if ((!IS_DIRECTORY_SEP (path[0]) || !IS_DIRECTORY_SEP (path[1])) |
2185 | && GetDriveType (drive) != DRIVE_REMOTE) | |
302d7d54 | 2186 | return; |
40a339c8 | 2187 | |
302d7d54 JR |
2188 | n_slashes = 2; |
2189 | strncpy (share, path, MAX_PATH); | |
2190 | /* Truncate to just server and share name. */ | |
2191 | for (i = 2; i < MAX_PATH; i++) | |
2192 | { | |
2193 | if (IS_DIRECTORY_SEP (share[i]) && ++n_slashes > 3) | |
2194 | { | |
2195 | share[i] = '\0'; | |
2196 | break; | |
2197 | } | |
2198 | } | |
2199 | ||
2200 | resource.dwType = RESOURCETYPE_DISK; | |
2201 | resource.lpLocalName = NULL; | |
2202 | resource.lpRemoteName = share; | |
2203 | resource.lpProvider = NULL; | |
2204 | ||
2205 | WNetAddConnection2 (&resource, NULL, NULL, CONNECT_INTERACTIVE); | |
2206 | } | |
480b0c5b GV |
2207 | |
2208 | /* Shadow some MSVC runtime functions to map requests for long filenames | |
2209 | to reasonable short names if necessary. This was originally added to | |
177c0ea7 | 2210 | permit running Emacs on NT 3.1 on a FAT partition, which doesn't support |
480b0c5b GV |
2211 | long file names. */ |
2212 | ||
2213 | int | |
2214 | sys_access (const char * path, int mode) | |
2215 | { | |
b3308d2e KH |
2216 | DWORD attributes; |
2217 | ||
2218 | /* MSVC implementation doesn't recognize D_OK. */ | |
2219 | path = map_w32_filename (path, NULL); | |
9d3355d1 GV |
2220 | if (is_unc_volume (path)) |
2221 | { | |
2222 | attributes = unc_volume_file_attributes (path); | |
2223 | if (attributes == -1) { | |
2224 | errno = EACCES; | |
2225 | return -1; | |
2226 | } | |
2227 | } | |
2228 | else if ((attributes = GetFileAttributes (path)) == -1) | |
b3308d2e KH |
2229 | { |
2230 | /* Should try mapping GetLastError to errno; for now just indicate | |
2231 | that path doesn't exist. */ | |
2232 | errno = EACCES; | |
2233 | return -1; | |
2234 | } | |
2235 | if ((mode & X_OK) != 0 && !is_exec (path)) | |
2236 | { | |
2237 | errno = EACCES; | |
2238 | return -1; | |
2239 | } | |
2240 | if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0) | |
2241 | { | |
2242 | errno = EACCES; | |
2243 | return -1; | |
2244 | } | |
2245 | if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) | |
2246 | { | |
2247 | errno = EACCES; | |
2248 | return -1; | |
2249 | } | |
2250 | return 0; | |
480b0c5b GV |
2251 | } |
2252 | ||
2253 | int | |
2254 | sys_chdir (const char * path) | |
2255 | { | |
fbd6baed | 2256 | return _chdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2257 | } |
2258 | ||
2259 | int | |
2260 | sys_chmod (const char * path, int mode) | |
2261 | { | |
fbd6baed | 2262 | return _chmod (map_w32_filename (path, NULL), mode); |
480b0c5b GV |
2263 | } |
2264 | ||
2d5ab4bf EZ |
2265 | int |
2266 | sys_chown (const char *path, uid_t owner, gid_t group) | |
2267 | { | |
e3b88685 | 2268 | if (sys_chmod (path, S_IREAD) == -1) /* check if file exists */ |
2d5ab4bf EZ |
2269 | return -1; |
2270 | return 0; | |
2271 | } | |
2272 | ||
480b0c5b GV |
2273 | int |
2274 | sys_creat (const char * path, int mode) | |
2275 | { | |
fbd6baed | 2276 | return _creat (map_w32_filename (path, NULL), mode); |
480b0c5b GV |
2277 | } |
2278 | ||
2279 | FILE * | |
2280 | sys_fopen(const char * path, const char * mode) | |
2281 | { | |
2282 | int fd; | |
2283 | int oflag; | |
2284 | const char * mode_save = mode; | |
2285 | ||
2286 | /* Force all file handles to be non-inheritable. This is necessary to | |
2287 | ensure child processes don't unwittingly inherit handles that might | |
2288 | prevent future file access. */ | |
2289 | ||
2290 | if (mode[0] == 'r') | |
2291 | oflag = O_RDONLY; | |
2292 | else if (mode[0] == 'w' || mode[0] == 'a') | |
2293 | oflag = O_WRONLY | O_CREAT | O_TRUNC; | |
95ed0025 | 2294 | else |
480b0c5b GV |
2295 | return NULL; |
2296 | ||
2297 | /* Only do simplistic option parsing. */ | |
2298 | while (*++mode) | |
2299 | if (mode[0] == '+') | |
2300 | { | |
2301 | oflag &= ~(O_RDONLY | O_WRONLY); | |
2302 | oflag |= O_RDWR; | |
2303 | } | |
2304 | else if (mode[0] == 'b') | |
2305 | { | |
2306 | oflag &= ~O_TEXT; | |
2307 | oflag |= O_BINARY; | |
2308 | } | |
2309 | else if (mode[0] == 't') | |
2310 | { | |
2311 | oflag &= ~O_BINARY; | |
2312 | oflag |= O_TEXT; | |
2313 | } | |
2314 | else break; | |
2315 | ||
fbd6baed | 2316 | fd = _open (map_w32_filename (path, NULL), oflag | _O_NOINHERIT, 0644); |
480b0c5b GV |
2317 | if (fd < 0) |
2318 | return NULL; | |
2319 | ||
76b3903d | 2320 | return _fdopen (fd, mode_save); |
95ed0025 | 2321 | } |
480b0c5b | 2322 | |
76b3903d | 2323 | /* This only works on NTFS volumes, but is useful to have. */ |
480b0c5b | 2324 | int |
76b3903d | 2325 | sys_link (const char * old, const char * new) |
480b0c5b | 2326 | { |
76b3903d GV |
2327 | HANDLE fileh; |
2328 | int result = -1; | |
2329 | char oldname[MAX_PATH], newname[MAX_PATH]; | |
2330 | ||
2331 | if (old == NULL || new == NULL) | |
2332 | { | |
2333 | errno = ENOENT; | |
2334 | return -1; | |
2335 | } | |
2336 | ||
2337 | strcpy (oldname, map_w32_filename (old, NULL)); | |
2338 | strcpy (newname, map_w32_filename (new, NULL)); | |
2339 | ||
2340 | fileh = CreateFile (oldname, 0, 0, NULL, OPEN_EXISTING, | |
2341 | FILE_FLAG_BACKUP_SEMANTICS, NULL); | |
2342 | if (fileh != INVALID_HANDLE_VALUE) | |
2343 | { | |
2344 | int wlen; | |
2345 | ||
2346 | /* Confusingly, the "alternate" stream name field does not apply | |
2347 | when restoring a hard link, and instead contains the actual | |
2348 | stream data for the link (ie. the name of the link to create). | |
2349 | The WIN32_STREAM_ID structure before the cStreamName field is | |
2350 | the stream header, which is then immediately followed by the | |
2351 | stream data. */ | |
2352 | ||
2353 | struct { | |
2354 | WIN32_STREAM_ID wid; | |
2355 | WCHAR wbuffer[MAX_PATH]; /* extra space for link name */ | |
2356 | } data; | |
2357 | ||
2358 | wlen = MultiByteToWideChar (CP_ACP, MB_PRECOMPOSED, newname, -1, | |
2359 | data.wid.cStreamName, MAX_PATH); | |
2360 | if (wlen > 0) | |
2361 | { | |
2362 | LPVOID context = NULL; | |
2363 | DWORD wbytes = 0; | |
2364 | ||
2365 | data.wid.dwStreamId = BACKUP_LINK; | |
2366 | data.wid.dwStreamAttributes = 0; | |
2367 | data.wid.Size.LowPart = wlen * sizeof(WCHAR); | |
2368 | data.wid.Size.HighPart = 0; | |
2369 | data.wid.dwStreamNameSize = 0; | |
2370 | ||
2371 | if (BackupWrite (fileh, (LPBYTE)&data, | |
2372 | offsetof (WIN32_STREAM_ID, cStreamName) | |
2373 | + data.wid.Size.LowPart, | |
2374 | &wbytes, FALSE, FALSE, &context) | |
2375 | && BackupWrite (fileh, NULL, 0, &wbytes, TRUE, FALSE, &context)) | |
2376 | { | |
2377 | /* succeeded */ | |
2378 | result = 0; | |
2379 | } | |
2380 | else | |
2381 | { | |
2382 | /* Should try mapping GetLastError to errno; for now just | |
2383 | indicate a general error (eg. links not supported). */ | |
2384 | errno = EINVAL; // perhaps EMLINK? | |
2385 | } | |
2386 | } | |
2387 | ||
2388 | CloseHandle (fileh); | |
2389 | } | |
2390 | else | |
2391 | errno = ENOENT; | |
2392 | ||
2393 | return result; | |
480b0c5b GV |
2394 | } |
2395 | ||
2396 | int | |
2397 | sys_mkdir (const char * path) | |
2398 | { | |
fbd6baed | 2399 | return _mkdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2400 | } |
2401 | ||
9d1778b1 RS |
2402 | /* Because of long name mapping issues, we need to implement this |
2403 | ourselves. Also, MSVC's _mktemp returns NULL when it can't generate | |
2404 | a unique name, instead of setting the input template to an empty | |
2405 | string. | |
2406 | ||
2407 | Standard algorithm seems to be use pid or tid with a letter on the | |
2408 | front (in place of the 6 X's) and cycle through the letters to find a | |
2409 | unique name. We extend that to allow any reasonable character as the | |
2410 | first of the 6 X's. */ | |
480b0c5b GV |
2411 | char * |
2412 | sys_mktemp (char * template) | |
2413 | { | |
9d1778b1 RS |
2414 | char * p; |
2415 | int i; | |
2416 | unsigned uid = GetCurrentThreadId (); | |
2417 | static char first_char[] = "abcdefghijklmnopqrstuvwyz0123456789!%-_@#"; | |
2418 | ||
2419 | if (template == NULL) | |
2420 | return NULL; | |
2421 | p = template + strlen (template); | |
2422 | i = 5; | |
2423 | /* replace up to the last 5 X's with uid in decimal */ | |
2424 | while (--p >= template && p[0] == 'X' && --i >= 0) | |
2425 | { | |
2426 | p[0] = '0' + uid % 10; | |
2427 | uid /= 10; | |
2428 | } | |
2429 | ||
2430 | if (i < 0 && p[0] == 'X') | |
2431 | { | |
2432 | i = 0; | |
2433 | do | |
2434 | { | |
2435 | int save_errno = errno; | |
2436 | p[0] = first_char[i]; | |
2437 | if (sys_access (template, 0) < 0) | |
2438 | { | |
2439 | errno = save_errno; | |
2440 | return template; | |
2441 | } | |
2442 | } | |
2443 | while (++i < sizeof (first_char)); | |
2444 | } | |
2445 | ||
2446 | /* Template is badly formed or else we can't generate a unique name, | |
2447 | so return empty string */ | |
2448 | template[0] = 0; | |
2449 | return template; | |
480b0c5b GV |
2450 | } |
2451 | ||
2452 | int | |
2453 | sys_open (const char * path, int oflag, int mode) | |
2454 | { | |
302f0b29 GM |
2455 | const char* mpath = map_w32_filename (path, NULL); |
2456 | /* Try to open file without _O_CREAT, to be able to write to hidden | |
2457 | and system files. Force all file handles to be | |
2458 | non-inheritable. */ | |
2459 | int res = _open (mpath, (oflag & ~_O_CREAT) | _O_NOINHERIT, mode); | |
2460 | if (res >= 0) | |
2461 | return res; | |
2462 | return _open (mpath, oflag | _O_NOINHERIT, mode); | |
480b0c5b GV |
2463 | } |
2464 | ||
2465 | int | |
2466 | sys_rename (const char * oldname, const char * newname) | |
2467 | { | |
cfb5e855 | 2468 | BOOL result; |
b3308d2e | 2469 | char temp[MAX_PATH]; |
480b0c5b | 2470 | |
e9e23e23 | 2471 | /* MoveFile on Windows 95 doesn't correctly change the short file name |
5162ffce MB |
2472 | alias in a number of circumstances (it is not easy to predict when |
2473 | just by looking at oldname and newname, unfortunately). In these | |
2474 | cases, renaming through a temporary name avoids the problem. | |
2475 | ||
e9e23e23 | 2476 | A second problem on Windows 95 is that renaming through a temp name when |
5162ffce MB |
2477 | newname is uppercase fails (the final long name ends up in |
2478 | lowercase, although the short alias might be uppercase) UNLESS the | |
2479 | long temp name is not 8.3. | |
2480 | ||
e9e23e23 | 2481 | So, on Windows 95 we always rename through a temp name, and we make sure |
5162ffce | 2482 | the temp name has a long extension to ensure correct renaming. */ |
480b0c5b | 2483 | |
fbd6baed | 2484 | strcpy (temp, map_w32_filename (oldname, NULL)); |
480b0c5b | 2485 | |
76b3903d | 2486 | if (os_subtype == OS_WIN95) |
480b0c5b | 2487 | { |
b3308d2e | 2488 | char * o; |
480b0c5b | 2489 | char * p; |
b3308d2e KH |
2490 | int i = 0; |
2491 | ||
2492 | oldname = map_w32_filename (oldname, NULL); | |
2493 | if (o = strrchr (oldname, '\\')) | |
2494 | o++; | |
2495 | else | |
2496 | o = (char *) oldname; | |
480b0c5b | 2497 | |
480b0c5b GV |
2498 | if (p = strrchr (temp, '\\')) |
2499 | p++; | |
2500 | else | |
2501 | p = temp; | |
b3308d2e KH |
2502 | |
2503 | do | |
2504 | { | |
2505 | /* Force temp name to require a manufactured 8.3 alias - this | |
2506 | seems to make the second rename work properly. */ | |
f313ee82 | 2507 | sprintf (p, "_.%s.%u", o, i); |
b3308d2e | 2508 | i++; |
58f0cb7e | 2509 | result = rename (oldname, temp); |
b3308d2e KH |
2510 | } |
2511 | /* This loop must surely terminate! */ | |
cfb5e855 | 2512 | while (result < 0 && errno == EEXIST); |
58f0cb7e | 2513 | if (result < 0) |
480b0c5b GV |
2514 | return -1; |
2515 | } | |
2516 | ||
2517 | /* Emulate Unix behaviour - newname is deleted if it already exists | |
5162ffce | 2518 | (at least if it is a file; don't do this for directories). |
76b3903d | 2519 | |
b3308d2e KH |
2520 | Since we mustn't do this if we are just changing the case of the |
2521 | file name (we would end up deleting the file we are trying to | |
2522 | rename!), we let rename detect if the destination file already | |
2523 | exists - that way we avoid the possible pitfalls of trying to | |
2524 | determine ourselves whether two names really refer to the same | |
2525 | file, which is not always possible in the general case. (Consider | |
2526 | all the permutations of shared or subst'd drives, etc.) */ | |
2527 | ||
2528 | newname = map_w32_filename (newname, NULL); | |
eb9ea53f | 2529 | result = rename (temp, newname); |
b3308d2e KH |
2530 | |
2531 | if (result < 0 | |
cfb5e855 | 2532 | && errno == EEXIST |
b3308d2e KH |
2533 | && _chmod (newname, 0666) == 0 |
2534 | && _unlink (newname) == 0) | |
2535 | result = rename (temp, newname); | |
480b0c5b | 2536 | |
eb9ea53f | 2537 | return result; |
480b0c5b GV |
2538 | } |
2539 | ||
2540 | int | |
2541 | sys_rmdir (const char * path) | |
2542 | { | |
fbd6baed | 2543 | return _rmdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2544 | } |
2545 | ||
2546 | int | |
2547 | sys_unlink (const char * path) | |
2548 | { | |
16bb7578 GV |
2549 | path = map_w32_filename (path, NULL); |
2550 | ||
2551 | /* On Unix, unlink works without write permission. */ | |
2552 | _chmod (path, 0666); | |
2553 | return _unlink (path); | |
480b0c5b GV |
2554 | } |
2555 | ||
2556 | static FILETIME utc_base_ft; | |
2557 | static long double utc_base; | |
2558 | static int init = 0; | |
2559 | ||
2560 | static time_t | |
2561 | convert_time (FILETIME ft) | |
2562 | { | |
2563 | long double ret; | |
2564 | ||
2565 | if (!init) | |
2566 | { | |
2567 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
2568 | SYSTEMTIME st; | |
2569 | ||
2570 | st.wYear = 1970; | |
2571 | st.wMonth = 1; | |
2572 | st.wDay = 1; | |
2573 | st.wHour = 0; | |
2574 | st.wMinute = 0; | |
2575 | st.wSecond = 0; | |
2576 | st.wMilliseconds = 0; | |
2577 | ||
2578 | SystemTimeToFileTime (&st, &utc_base_ft); | |
2579 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
69b72317 | 2580 | * 4096.0L * 1024.0L * 1024.0L + utc_base_ft.dwLowDateTime; |
480b0c5b GV |
2581 | init = 1; |
2582 | } | |
2583 | ||
2584 | if (CompareFileTime (&ft, &utc_base_ft) < 0) | |
2585 | return 0; | |
2586 | ||
69b72317 EZ |
2587 | ret = (long double) ft.dwHighDateTime |
2588 | * 4096.0L * 1024.0L * 1024.0L + ft.dwLowDateTime; | |
480b0c5b | 2589 | ret -= utc_base; |
69b72317 | 2590 | return (time_t) (ret * 1e-7L); |
480b0c5b GV |
2591 | } |
2592 | ||
480b0c5b GV |
2593 | void |
2594 | convert_from_time_t (time_t time, FILETIME * pft) | |
2595 | { | |
2596 | long double tmp; | |
2597 | ||
2598 | if (!init) | |
2599 | { | |
2600 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
2601 | SYSTEMTIME st; | |
2602 | ||
2603 | st.wYear = 1970; | |
2604 | st.wMonth = 1; | |
2605 | st.wDay = 1; | |
2606 | st.wHour = 0; | |
2607 | st.wMinute = 0; | |
2608 | st.wSecond = 0; | |
2609 | st.wMilliseconds = 0; | |
2610 | ||
2611 | SystemTimeToFileTime (&st, &utc_base_ft); | |
2612 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
2613 | * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime; | |
2614 | init = 1; | |
2615 | } | |
2616 | ||
2617 | /* time in 100ns units since 1-Jan-1601 */ | |
2618 | tmp = (long double) time * 1e7 + utc_base; | |
2619 | pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024)); | |
16bb7578 | 2620 | pft->dwLowDateTime = (DWORD) (tmp - (4096.0 * 1024 * 1024) * pft->dwHighDateTime); |
480b0c5b | 2621 | } |
480b0c5b | 2622 | |
76b3903d GV |
2623 | #if 0 |
2624 | /* No reason to keep this; faking inode values either by hashing or even | |
2625 | using the file index from GetInformationByHandle, is not perfect and | |
2626 | so by default Emacs doesn't use the inode values on Windows. | |
2627 | Instead, we now determine file-truename correctly (except for | |
2628 | possible drive aliasing etc). */ | |
2629 | ||
2630 | /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */ | |
480b0c5b | 2631 | static unsigned |
76b3903d | 2632 | hashval (const unsigned char * str) |
480b0c5b GV |
2633 | { |
2634 | unsigned h = 0; | |
480b0c5b GV |
2635 | while (*str) |
2636 | { | |
2637 | h = (h << 4) + *str++; | |
76b3903d | 2638 | h ^= (h >> 28); |
480b0c5b GV |
2639 | } |
2640 | return h; | |
2641 | } | |
2642 | ||
2643 | /* Return the hash value of the canonical pathname, excluding the | |
2644 | drive/UNC header, to get a hopefully unique inode number. */ | |
76b3903d | 2645 | static DWORD |
480b0c5b GV |
2646 | generate_inode_val (const char * name) |
2647 | { | |
2648 | char fullname[ MAX_PATH ]; | |
2649 | char * p; | |
2650 | unsigned hash; | |
2651 | ||
76b3903d GV |
2652 | /* Get the truly canonical filename, if it exists. (Note: this |
2653 | doesn't resolve aliasing due to subst commands, or recognise hard | |
2654 | links. */ | |
2655 | if (!w32_get_long_filename ((char *)name, fullname, MAX_PATH)) | |
2656 | abort (); | |
2657 | ||
2658 | parse_root (fullname, &p); | |
fbd6baed | 2659 | /* Normal W32 filesystems are still case insensitive. */ |
480b0c5b | 2660 | _strlwr (p); |
76b3903d | 2661 | return hashval (p); |
480b0c5b GV |
2662 | } |
2663 | ||
76b3903d GV |
2664 | #endif |
2665 | ||
8aaaec6b EZ |
2666 | static PSECURITY_DESCRIPTOR |
2667 | get_file_security_desc (const char *fname) | |
2668 | { | |
2669 | PSECURITY_DESCRIPTOR psd = NULL; | |
2670 | DWORD sd_len, err; | |
2671 | SECURITY_INFORMATION si = OWNER_SECURITY_INFORMATION | |
2672 | | GROUP_SECURITY_INFORMATION /* | DACL_SECURITY_INFORMATION */ ; | |
2673 | ||
2674 | if (!get_file_security (fname, si, psd, 0, &sd_len)) | |
2675 | { | |
2676 | err = GetLastError (); | |
2677 | if (err != ERROR_INSUFFICIENT_BUFFER) | |
2678 | return NULL; | |
2679 | } | |
2680 | ||
2681 | psd = xmalloc (sd_len); | |
2682 | if (!get_file_security (fname, si, psd, sd_len, &sd_len)) | |
2683 | { | |
2684 | xfree (psd); | |
2685 | return NULL; | |
2686 | } | |
2687 | ||
2688 | return psd; | |
2689 | } | |
2690 | ||
2691 | static DWORD | |
2692 | get_rid (PSID sid) | |
2693 | { | |
2694 | unsigned n_subauthorities; | |
2695 | ||
2696 | /* Use the last sub-authority value of the RID, the relative | |
2697 | portion of the SID, as user/group ID. */ | |
2698 | n_subauthorities = *get_sid_sub_authority_count (sid); | |
2699 | if (n_subauthorities < 1) | |
2700 | return 0; /* the "World" RID */ | |
2701 | return *get_sid_sub_authority (sid, n_subauthorities - 1); | |
2702 | } | |
2703 | ||
2704 | #define UID 1 | |
2705 | #define GID 2 | |
2706 | ||
2707 | static int | |
2708 | get_name_and_id (PSECURITY_DESCRIPTOR psd, const char *fname, | |
2709 | int *id, char *nm, int what) | |
2710 | { | |
2711 | PSID sid = NULL; | |
2712 | char machine[MAX_COMPUTERNAME_LENGTH+1]; | |
2713 | BOOL dflt; | |
2714 | SID_NAME_USE ignore; | |
2715 | char name[UNLEN+1]; | |
2716 | DWORD name_len = sizeof (name); | |
2717 | char domain[1024]; | |
2718 | DWORD domain_len = sizeof(domain); | |
2719 | char *mp = NULL; | |
2720 | int use_dflt = 0; | |
2721 | int result; | |
2722 | ||
2723 | if (what == UID) | |
2724 | result = get_security_descriptor_owner (psd, &sid, &dflt); | |
2725 | else if (what == GID) | |
2726 | result = get_security_descriptor_group (psd, &sid, &dflt); | |
2727 | else | |
2728 | result = 0; | |
2729 | ||
2730 | if (!result || !is_valid_sid (sid)) | |
2731 | use_dflt = 1; | |
2732 | else | |
2733 | { | |
2734 | /* If FNAME is a UNC, we need to lookup account on the | |
2735 | specified machine. */ | |
2736 | if (IS_DIRECTORY_SEP (fname[0]) && IS_DIRECTORY_SEP (fname[1]) | |
2737 | && fname[2] != '\0') | |
2738 | { | |
2739 | const char *s; | |
2740 | char *p; | |
2741 | ||
2742 | for (s = fname + 2, p = machine; | |
2743 | *s && !IS_DIRECTORY_SEP (*s); s++, p++) | |
2744 | *p = *s; | |
2745 | *p = '\0'; | |
2746 | mp = machine; | |
2747 | } | |
2748 | ||
2749 | if (!lookup_account_sid (mp, sid, name, &name_len, | |
2750 | domain, &domain_len, &ignore) | |
2751 | || name_len > UNLEN+1) | |
2752 | use_dflt = 1; | |
2753 | else | |
2754 | { | |
2755 | *id = get_rid (sid); | |
2756 | strcpy (nm, name); | |
2757 | } | |
2758 | } | |
2759 | return use_dflt; | |
2760 | } | |
2761 | ||
2762 | static void | |
2763 | get_file_owner_and_group ( | |
2764 | PSECURITY_DESCRIPTOR psd, | |
2765 | const char *fname, | |
2766 | struct stat *st) | |
2767 | { | |
2768 | int dflt_usr = 0, dflt_grp = 0; | |
2769 | ||
2770 | if (!psd) | |
2771 | { | |
2772 | dflt_usr = 1; | |
2773 | dflt_grp = 1; | |
2774 | } | |
2775 | else | |
2776 | { | |
2777 | if (get_name_and_id (psd, fname, &st->st_uid, st->st_uname, UID)) | |
2778 | dflt_usr = 1; | |
2779 | if (get_name_and_id (psd, fname, &st->st_gid, st->st_gname, GID)) | |
2780 | dflt_grp = 1; | |
2781 | } | |
2782 | /* Consider files to belong to current user/group, if we cannot get | |
2783 | more accurate information. */ | |
2784 | if (dflt_usr) | |
2785 | { | |
2786 | st->st_uid = dflt_passwd.pw_uid; | |
2787 | strcpy (st->st_uname, dflt_passwd.pw_name); | |
2788 | } | |
2789 | if (dflt_grp) | |
2790 | { | |
2791 | st->st_gid = dflt_passwd.pw_gid; | |
2792 | strcpy (st->st_gname, dflt_group.gr_name); | |
2793 | } | |
2794 | } | |
2795 | ||
480b0c5b GV |
2796 | /* MSVC stat function can't cope with UNC names and has other bugs, so |
2797 | replace it with our own. This also allows us to calculate consistent | |
2798 | inode values without hacks in the main Emacs code. */ | |
2799 | int | |
2800 | stat (const char * path, struct stat * buf) | |
2801 | { | |
eb9ea53f | 2802 | char *name, *r; |
480b0c5b GV |
2803 | WIN32_FIND_DATA wfd; |
2804 | HANDLE fh; | |
e3b88685 | 2805 | unsigned __int64 fake_inode; |
480b0c5b GV |
2806 | int permission; |
2807 | int len; | |
2808 | int rootdir = FALSE; | |
8aaaec6b | 2809 | PSECURITY_DESCRIPTOR psd = NULL; |
480b0c5b GV |
2810 | |
2811 | if (path == NULL || buf == NULL) | |
2812 | { | |
2813 | errno = EFAULT; | |
2814 | return -1; | |
2815 | } | |
2816 | ||
fbd6baed | 2817 | name = (char *) map_w32_filename (path, &path); |
22189f79 EZ |
2818 | /* Must be valid filename, no wild cards or other invalid |
2819 | characters. We use _mbspbrk to support multibyte strings that | |
2820 | might look to strpbrk as if they included literal *, ?, and other | |
2821 | characters mentioned below that are disallowed by Windows | |
2822 | filesystems. */ | |
2823 | if (_mbspbrk (name, "*?|<>\"")) | |
480b0c5b GV |
2824 | { |
2825 | errno = ENOENT; | |
2826 | return -1; | |
2827 | } | |
2828 | ||
eb9ea53f GV |
2829 | /* If name is "c:/.." or "/.." then stat "c:/" or "/". */ |
2830 | r = IS_DEVICE_SEP (name[1]) ? &name[2] : name; | |
2831 | if (IS_DIRECTORY_SEP (r[0]) && r[1] == '.' && r[2] == '.' && r[3] == '\0') | |
2832 | { | |
2833 | r[1] = r[2] = '\0'; | |
2834 | } | |
2835 | ||
480b0c5b GV |
2836 | /* Remove trailing directory separator, unless name is the root |
2837 | directory of a drive or UNC volume in which case ensure there | |
2838 | is a trailing separator. */ | |
2839 | len = strlen (name); | |
2840 | rootdir = (path >= name + len - 1 | |
2841 | && (IS_DIRECTORY_SEP (*path) || *path == 0)); | |
2842 | name = strcpy (alloca (len + 2), name); | |
2843 | ||
9d3355d1 GV |
2844 | if (is_unc_volume (name)) |
2845 | { | |
2846 | DWORD attrs = unc_volume_file_attributes (name); | |
2847 | ||
2848 | if (attrs == -1) | |
2849 | return -1; | |
2850 | ||
2851 | memset (&wfd, 0, sizeof (wfd)); | |
2852 | wfd.dwFileAttributes = attrs; | |
2853 | wfd.ftCreationTime = utc_base_ft; | |
2854 | wfd.ftLastAccessTime = utc_base_ft; | |
2855 | wfd.ftLastWriteTime = utc_base_ft; | |
2856 | strcpy (wfd.cFileName, name); | |
2857 | } | |
2858 | else if (rootdir) | |
480b0c5b GV |
2859 | { |
2860 | if (!IS_DIRECTORY_SEP (name[len-1])) | |
2861 | strcat (name, "\\"); | |
2862 | if (GetDriveType (name) < 2) | |
2863 | { | |
2864 | errno = ENOENT; | |
2865 | return -1; | |
2866 | } | |
2867 | memset (&wfd, 0, sizeof (wfd)); | |
2868 | wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY; | |
2869 | wfd.ftCreationTime = utc_base_ft; | |
2870 | wfd.ftLastAccessTime = utc_base_ft; | |
2871 | wfd.ftLastWriteTime = utc_base_ft; | |
2872 | strcpy (wfd.cFileName, name); | |
2873 | } | |
2874 | else | |
2875 | { | |
2876 | if (IS_DIRECTORY_SEP (name[len-1])) | |
2877 | name[len - 1] = 0; | |
76b3903d GV |
2878 | |
2879 | /* (This is hacky, but helps when doing file completions on | |
2880 | network drives.) Optimize by using information available from | |
2881 | active readdir if possible. */ | |
b19cc00c GV |
2882 | len = strlen (dir_pathname); |
2883 | if (IS_DIRECTORY_SEP (dir_pathname[len-1])) | |
2884 | len--; | |
76b3903d | 2885 | if (dir_find_handle != INVALID_HANDLE_VALUE |
b19cc00c | 2886 | && strnicmp (name, dir_pathname, len) == 0 |
76b3903d | 2887 | && IS_DIRECTORY_SEP (name[len]) |
05131107 | 2888 | && xstrcasecmp (name + len + 1, dir_static.d_name) == 0) |
480b0c5b | 2889 | { |
76b3903d GV |
2890 | /* This was the last entry returned by readdir. */ |
2891 | wfd = dir_find_data; | |
2892 | } | |
2893 | else | |
2894 | { | |
513feaa5 | 2895 | logon_network_drive (name); |
302d7d54 | 2896 | |
76b3903d GV |
2897 | fh = FindFirstFile (name, &wfd); |
2898 | if (fh == INVALID_HANDLE_VALUE) | |
2899 | { | |
2900 | errno = ENOENT; | |
2901 | return -1; | |
2902 | } | |
2903 | FindClose (fh); | |
480b0c5b | 2904 | } |
480b0c5b GV |
2905 | } |
2906 | ||
8aaaec6b EZ |
2907 | if (!(NILP (Vw32_get_true_file_attributes) |
2908 | || (EQ (Vw32_get_true_file_attributes, Qlocal) && | |
2a85f0c2 | 2909 | GetDriveType (name) != DRIVE_FIXED)) |
93e0f0da JR |
2910 | /* No access rights required to get info. */ |
2911 | && (fh = CreateFile (name, 0, 0, NULL, OPEN_EXISTING, | |
2912 | FILE_FLAG_BACKUP_SEMANTICS, NULL)) | |
2913 | != INVALID_HANDLE_VALUE) | |
480b0c5b | 2914 | { |
480b0c5b | 2915 | /* This is more accurate in terms of gettting the correct number |
aa5ee2a3 | 2916 | of links, but is quite slow (it is noticeable when Emacs is |
480b0c5b GV |
2917 | making a list of file name completions). */ |
2918 | BY_HANDLE_FILE_INFORMATION info; | |
2919 | ||
480b0c5b GV |
2920 | if (GetFileInformationByHandle (fh, &info)) |
2921 | { | |
480b0c5b | 2922 | buf->st_nlink = info.nNumberOfLinks; |
76b3903d GV |
2923 | /* Might as well use file index to fake inode values, but this |
2924 | is not guaranteed to be unique unless we keep a handle open | |
2925 | all the time (even then there are situations where it is | |
2926 | not unique). Reputedly, there are at most 48 bits of info | |
2927 | (on NTFS, presumably less on FAT). */ | |
e3b88685 EZ |
2928 | fake_inode = info.nFileIndexHigh; |
2929 | fake_inode <<= 32; | |
2930 | fake_inode += info.nFileIndexLow; | |
480b0c5b GV |
2931 | } |
2932 | else | |
2933 | { | |
01f31dfb AI |
2934 | buf->st_nlink = 1; |
2935 | fake_inode = 0; | |
2936 | } | |
2937 | ||
93e0f0da | 2938 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
01f31dfb | 2939 | { |
e3b88685 | 2940 | buf->st_mode = S_IFDIR; |
93e0f0da JR |
2941 | } |
2942 | else | |
2943 | { | |
2944 | switch (GetFileType (fh)) | |
2945 | { | |
2946 | case FILE_TYPE_DISK: | |
e3b88685 | 2947 | buf->st_mode = S_IFREG; |
93e0f0da JR |
2948 | break; |
2949 | case FILE_TYPE_PIPE: | |
e3b88685 | 2950 | buf->st_mode = S_IFIFO; |
93e0f0da JR |
2951 | break; |
2952 | case FILE_TYPE_CHAR: | |
2953 | case FILE_TYPE_UNKNOWN: | |
2954 | default: | |
e3b88685 | 2955 | buf->st_mode = S_IFCHR; |
93e0f0da | 2956 | } |
480b0c5b | 2957 | } |
01f31dfb | 2958 | CloseHandle (fh); |
8aaaec6b EZ |
2959 | psd = get_file_security_desc (name); |
2960 | get_file_owner_and_group (psd, name, buf); | |
76b3903d GV |
2961 | } |
2962 | else | |
2963 | { | |
2964 | /* Don't bother to make this information more accurate. */ | |
93e0f0da | 2965 | buf->st_mode = (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? |
e3b88685 | 2966 | S_IFDIR : S_IFREG; |
480b0c5b | 2967 | buf->st_nlink = 1; |
76b3903d | 2968 | fake_inode = 0; |
8aaaec6b EZ |
2969 | |
2970 | get_file_owner_and_group (NULL, name, buf); | |
76b3903d | 2971 | } |
70fdbb46 | 2972 | xfree (psd); |
76b3903d GV |
2973 | |
2974 | #if 0 | |
2975 | /* Not sure if there is any point in this. */ | |
2976 | if (!NILP (Vw32_generate_fake_inodes)) | |
2977 | fake_inode = generate_inode_val (name); | |
2978 | else if (fake_inode == 0) | |
2979 | { | |
2980 | /* For want of something better, try to make everything unique. */ | |
2981 | static DWORD gen_num = 0; | |
2982 | fake_inode = ++gen_num; | |
480b0c5b | 2983 | } |
76b3903d GV |
2984 | #endif |
2985 | ||
2986 | /* MSVC defines _ino_t to be short; other libc's might not. */ | |
2987 | if (sizeof (buf->st_ino) == 2) | |
2988 | buf->st_ino = fake_inode ^ (fake_inode >> 16); | |
2989 | else | |
2990 | buf->st_ino = fake_inode; | |
480b0c5b | 2991 | |
fbd6baed | 2992 | /* volume_info is set indirectly by map_w32_filename */ |
480b0c5b GV |
2993 | buf->st_dev = volume_info.serialnum; |
2994 | buf->st_rdev = volume_info.serialnum; | |
2995 | ||
480b0c5b | 2996 | |
8aaaec6b EZ |
2997 | buf->st_size = wfd.nFileSizeHigh; |
2998 | buf->st_size <<= 32; | |
2999 | buf->st_size += wfd.nFileSizeLow; | |
480b0c5b GV |
3000 | |
3001 | /* Convert timestamps to Unix format. */ | |
3002 | buf->st_mtime = convert_time (wfd.ftLastWriteTime); | |
3003 | buf->st_atime = convert_time (wfd.ftLastAccessTime); | |
3004 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
3005 | buf->st_ctime = convert_time (wfd.ftCreationTime); | |
3006 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
3007 | ||
3008 | /* determine rwx permissions */ | |
3009 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
e3b88685 | 3010 | permission = S_IREAD; |
480b0c5b | 3011 | else |
e3b88685 | 3012 | permission = S_IREAD | S_IWRITE; |
177c0ea7 | 3013 | |
480b0c5b | 3014 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
e3b88685 | 3015 | permission |= S_IEXEC; |
b3308d2e | 3016 | else if (is_exec (name)) |
e3b88685 | 3017 | permission |= S_IEXEC; |
480b0c5b GV |
3018 | |
3019 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
3020 | ||
3021 | return 0; | |
3022 | } | |
3023 | ||
16bb7578 GV |
3024 | /* Provide fstat and utime as well as stat for consistent handling of |
3025 | file timestamps. */ | |
3026 | int | |
3027 | fstat (int desc, struct stat * buf) | |
3028 | { | |
3029 | HANDLE fh = (HANDLE) _get_osfhandle (desc); | |
3030 | BY_HANDLE_FILE_INFORMATION info; | |
e3b88685 | 3031 | unsigned __int64 fake_inode; |
16bb7578 GV |
3032 | int permission; |
3033 | ||
3034 | switch (GetFileType (fh) & ~FILE_TYPE_REMOTE) | |
3035 | { | |
3036 | case FILE_TYPE_DISK: | |
e3b88685 | 3037 | buf->st_mode = S_IFREG; |
16bb7578 GV |
3038 | if (!GetFileInformationByHandle (fh, &info)) |
3039 | { | |
3040 | errno = EACCES; | |
3041 | return -1; | |
3042 | } | |
3043 | break; | |
3044 | case FILE_TYPE_PIPE: | |
e3b88685 | 3045 | buf->st_mode = S_IFIFO; |
16bb7578 GV |
3046 | goto non_disk; |
3047 | case FILE_TYPE_CHAR: | |
3048 | case FILE_TYPE_UNKNOWN: | |
3049 | default: | |
e3b88685 | 3050 | buf->st_mode = S_IFCHR; |
16bb7578 GV |
3051 | non_disk: |
3052 | memset (&info, 0, sizeof (info)); | |
3053 | info.dwFileAttributes = 0; | |
3054 | info.ftCreationTime = utc_base_ft; | |
3055 | info.ftLastAccessTime = utc_base_ft; | |
3056 | info.ftLastWriteTime = utc_base_ft; | |
3057 | } | |
3058 | ||
3059 | if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
e3b88685 | 3060 | buf->st_mode = S_IFDIR; |
93e0f0da JR |
3061 | |
3062 | buf->st_nlink = info.nNumberOfLinks; | |
3063 | /* Might as well use file index to fake inode values, but this | |
3064 | is not guaranteed to be unique unless we keep a handle open | |
3065 | all the time (even then there are situations where it is | |
3066 | not unique). Reputedly, there are at most 48 bits of info | |
3067 | (on NTFS, presumably less on FAT). */ | |
e3b88685 EZ |
3068 | fake_inode = info.nFileIndexHigh; |
3069 | fake_inode <<= 32; | |
3070 | fake_inode += info.nFileIndexLow; | |
16bb7578 GV |
3071 | |
3072 | /* MSVC defines _ino_t to be short; other libc's might not. */ | |
3073 | if (sizeof (buf->st_ino) == 2) | |
3074 | buf->st_ino = fake_inode ^ (fake_inode >> 16); | |
3075 | else | |
3076 | buf->st_ino = fake_inode; | |
3077 | ||
8aaaec6b EZ |
3078 | /* Consider files to belong to current user. |
3079 | FIXME: this should use GetSecurityInfo API, but it is only | |
3080 | available for _WIN32_WINNT >= 0x501. */ | |
07f7980a EZ |
3081 | buf->st_uid = dflt_passwd.pw_uid; |
3082 | buf->st_gid = dflt_passwd.pw_gid; | |
8aaaec6b EZ |
3083 | strcpy (buf->st_uname, dflt_passwd.pw_name); |
3084 | strcpy (buf->st_gname, dflt_group.gr_name); | |
16bb7578 GV |
3085 | |
3086 | buf->st_dev = info.dwVolumeSerialNumber; | |
3087 | buf->st_rdev = info.dwVolumeSerialNumber; | |
3088 | ||
8aaaec6b EZ |
3089 | buf->st_size = info.nFileSizeHigh; |
3090 | buf->st_size <<= 32; | |
3091 | buf->st_size += info.nFileSizeLow; | |
16bb7578 GV |
3092 | |
3093 | /* Convert timestamps to Unix format. */ | |
3094 | buf->st_mtime = convert_time (info.ftLastWriteTime); | |
3095 | buf->st_atime = convert_time (info.ftLastAccessTime); | |
3096 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
3097 | buf->st_ctime = convert_time (info.ftCreationTime); | |
3098 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
3099 | ||
3100 | /* determine rwx permissions */ | |
3101 | if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
e3b88685 | 3102 | permission = S_IREAD; |
16bb7578 | 3103 | else |
e3b88685 | 3104 | permission = S_IREAD | S_IWRITE; |
177c0ea7 | 3105 | |
16bb7578 | 3106 | if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
e3b88685 | 3107 | permission |= S_IEXEC; |
16bb7578 GV |
3108 | else |
3109 | { | |
3110 | #if 0 /* no way of knowing the filename */ | |
3111 | char * p = strrchr (name, '.'); | |
3112 | if (p != NULL && | |
05131107 JR |
3113 | (xstrcasecmp (p, ".exe") == 0 || |
3114 | xstrcasecmp (p, ".com") == 0 || | |
3115 | xstrcasecmp (p, ".bat") == 0 || | |
3116 | xstrcasecmp (p, ".cmd") == 0)) | |
e3b88685 | 3117 | permission |= S_IEXEC; |
16bb7578 GV |
3118 | #endif |
3119 | } | |
3120 | ||
3121 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
3122 | ||
3123 | return 0; | |
3124 | } | |
3125 | ||
3126 | int | |
3127 | utime (const char *name, struct utimbuf *times) | |
3128 | { | |
3129 | struct utimbuf deftime; | |
3130 | HANDLE fh; | |
3131 | FILETIME mtime; | |
3132 | FILETIME atime; | |
3133 | ||
3134 | if (times == NULL) | |
3135 | { | |
3136 | deftime.modtime = deftime.actime = time (NULL); | |
3137 | times = &deftime; | |
3138 | } | |
3139 | ||
3140 | /* Need write access to set times. */ | |
3141 | fh = CreateFile (name, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, | |
3142 | 0, OPEN_EXISTING, 0, NULL); | |
3143 | if (fh) | |
3144 | { | |
3145 | convert_from_time_t (times->actime, &atime); | |
3146 | convert_from_time_t (times->modtime, &mtime); | |
3147 | if (!SetFileTime (fh, NULL, &atime, &mtime)) | |
3148 | { | |
3149 | CloseHandle (fh); | |
3150 | errno = EACCES; | |
3151 | return -1; | |
3152 | } | |
3153 | CloseHandle (fh); | |
3154 | } | |
3155 | else | |
3156 | { | |
3157 | errno = EINVAL; | |
3158 | return -1; | |
3159 | } | |
3160 | return 0; | |
3161 | } | |
3162 | ||
480b0c5b GV |
3163 | #ifdef HAVE_SOCKETS |
3164 | ||
3165 | /* Wrappers for winsock functions to map between our file descriptors | |
3166 | and winsock's handles; also set h_errno for convenience. | |
3167 | ||
3168 | To allow Emacs to run on systems which don't have winsock support | |
3169 | installed, we dynamically link to winsock on startup if present, and | |
3170 | otherwise provide the minimum necessary functionality | |
3171 | (eg. gethostname). */ | |
3172 | ||
3173 | /* function pointers for relevant socket functions */ | |
3174 | int (PASCAL *pfn_WSAStartup) (WORD wVersionRequired, LPWSADATA lpWSAData); | |
3175 | void (PASCAL *pfn_WSASetLastError) (int iError); | |
3176 | int (PASCAL *pfn_WSAGetLastError) (void); | |
26fb7bc4 | 3177 | int (PASCAL *pfn_WSAEventSelect) (SOCKET s, HANDLE hEventObject, long lNetworkEvents); |
64570b36 KS |
3178 | HANDLE (PASCAL *pfn_WSACreateEvent) (void); |
3179 | int (PASCAL *pfn_WSACloseEvent) (HANDLE hEvent); | |
480b0c5b GV |
3180 | int (PASCAL *pfn_socket) (int af, int type, int protocol); |
3181 | int (PASCAL *pfn_bind) (SOCKET s, const struct sockaddr *addr, int namelen); | |
3182 | int (PASCAL *pfn_connect) (SOCKET s, const struct sockaddr *addr, int namelen); | |
3183 | int (PASCAL *pfn_ioctlsocket) (SOCKET s, long cmd, u_long *argp); | |
3184 | int (PASCAL *pfn_recv) (SOCKET s, char * buf, int len, int flags); | |
3185 | int (PASCAL *pfn_send) (SOCKET s, const char * buf, int len, int flags); | |
3186 | int (PASCAL *pfn_closesocket) (SOCKET s); | |
3187 | int (PASCAL *pfn_shutdown) (SOCKET s, int how); | |
3188 | int (PASCAL *pfn_WSACleanup) (void); | |
3189 | ||
3190 | u_short (PASCAL *pfn_htons) (u_short hostshort); | |
3191 | u_short (PASCAL *pfn_ntohs) (u_short netshort); | |
3192 | unsigned long (PASCAL *pfn_inet_addr) (const char * cp); | |
3193 | int (PASCAL *pfn_gethostname) (char * name, int namelen); | |
3194 | struct hostent * (PASCAL *pfn_gethostbyname) (const char * name); | |
3195 | struct servent * (PASCAL *pfn_getservbyname) (const char * name, const char * proto); | |
ecd270eb | 3196 | int (PASCAL *pfn_getpeername) (SOCKET s, struct sockaddr *addr, int * namelen); |
962955c5 JR |
3197 | int (PASCAL *pfn_setsockopt) (SOCKET s, int level, int optname, |
3198 | const char * optval, int optlen); | |
3199 | int (PASCAL *pfn_listen) (SOCKET s, int backlog); | |
3200 | int (PASCAL *pfn_getsockname) (SOCKET s, struct sockaddr * name, | |
3201 | int * namelen); | |
3202 | SOCKET (PASCAL *pfn_accept) (SOCKET s, struct sockaddr * addr, int * addrlen); | |
3203 | int (PASCAL *pfn_recvfrom) (SOCKET s, char * buf, int len, int flags, | |
3204 | struct sockaddr * from, int * fromlen); | |
3205 | int (PASCAL *pfn_sendto) (SOCKET s, const char * buf, int len, int flags, | |
3206 | const struct sockaddr * to, int tolen); | |
3207 | ||
f1614061 RS |
3208 | /* SetHandleInformation is only needed to make sockets non-inheritable. */ |
3209 | BOOL (WINAPI *pfn_SetHandleInformation) (HANDLE object, DWORD mask, DWORD flags); | |
3210 | #ifndef HANDLE_FLAG_INHERIT | |
3211 | #define HANDLE_FLAG_INHERIT 1 | |
3212 | #endif | |
480b0c5b | 3213 | |
f249a012 RS |
3214 | HANDLE winsock_lib; |
3215 | static int winsock_inuse; | |
480b0c5b | 3216 | |
f249a012 | 3217 | BOOL |
480b0c5b GV |
3218 | term_winsock (void) |
3219 | { | |
f249a012 | 3220 | if (winsock_lib != NULL && winsock_inuse == 0) |
480b0c5b | 3221 | { |
f249a012 RS |
3222 | /* Not sure what would cause WSAENETDOWN, or even if it can happen |
3223 | after WSAStartup returns successfully, but it seems reasonable | |
3224 | to allow unloading winsock anyway in that case. */ | |
3225 | if (pfn_WSACleanup () == 0 || | |
3226 | pfn_WSAGetLastError () == WSAENETDOWN) | |
3227 | { | |
3228 | if (FreeLibrary (winsock_lib)) | |
3229 | winsock_lib = NULL; | |
3230 | return TRUE; | |
3231 | } | |
480b0c5b | 3232 | } |
f249a012 | 3233 | return FALSE; |
480b0c5b GV |
3234 | } |
3235 | ||
f249a012 RS |
3236 | BOOL |
3237 | init_winsock (int load_now) | |
480b0c5b GV |
3238 | { |
3239 | WSADATA winsockData; | |
3240 | ||
f249a012 RS |
3241 | if (winsock_lib != NULL) |
3242 | return TRUE; | |
f1614061 RS |
3243 | |
3244 | pfn_SetHandleInformation = NULL; | |
3245 | pfn_SetHandleInformation | |
3246 | = (void *) GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3247 | "SetHandleInformation"); | |
3248 | ||
64570b36 | 3249 | winsock_lib = LoadLibrary ("Ws2_32.dll"); |
480b0c5b GV |
3250 | |
3251 | if (winsock_lib != NULL) | |
3252 | { | |
3253 | /* dynamically link to socket functions */ | |
3254 | ||
3255 | #define LOAD_PROC(fn) \ | |
3256 | if ((pfn_##fn = (void *) GetProcAddress (winsock_lib, #fn)) == NULL) \ | |
3257 | goto fail; | |
3258 | ||
3259 | LOAD_PROC( WSAStartup ); | |
3260 | LOAD_PROC( WSASetLastError ); | |
3261 | LOAD_PROC( WSAGetLastError ); | |
26fb7bc4 | 3262 | LOAD_PROC( WSAEventSelect ); |
64570b36 KS |
3263 | LOAD_PROC( WSACreateEvent ); |
3264 | LOAD_PROC( WSACloseEvent ); | |
480b0c5b GV |
3265 | LOAD_PROC( socket ); |
3266 | LOAD_PROC( bind ); | |
3267 | LOAD_PROC( connect ); | |
3268 | LOAD_PROC( ioctlsocket ); | |
3269 | LOAD_PROC( recv ); | |
3270 | LOAD_PROC( send ); | |
3271 | LOAD_PROC( closesocket ); | |
3272 | LOAD_PROC( shutdown ); | |
3273 | LOAD_PROC( htons ); | |
3274 | LOAD_PROC( ntohs ); | |
3275 | LOAD_PROC( inet_addr ); | |
3276 | LOAD_PROC( gethostname ); | |
3277 | LOAD_PROC( gethostbyname ); | |
3278 | LOAD_PROC( getservbyname ); | |
ecd270eb | 3279 | LOAD_PROC( getpeername ); |
480b0c5b | 3280 | LOAD_PROC( WSACleanup ); |
962955c5 JR |
3281 | LOAD_PROC( setsockopt ); |
3282 | LOAD_PROC( listen ); | |
3283 | LOAD_PROC( getsockname ); | |
3284 | LOAD_PROC( accept ); | |
3285 | LOAD_PROC( recvfrom ); | |
3286 | LOAD_PROC( sendto ); | |
f249a012 RS |
3287 | #undef LOAD_PROC |
3288 | ||
480b0c5b GV |
3289 | /* specify version 1.1 of winsock */ |
3290 | if (pfn_WSAStartup (0x101, &winsockData) == 0) | |
3291 | { | |
f249a012 RS |
3292 | if (winsockData.wVersion != 0x101) |
3293 | goto fail; | |
3294 | ||
3295 | if (!load_now) | |
3296 | { | |
3297 | /* Report that winsock exists and is usable, but leave | |
3298 | socket functions disabled. I am assuming that calling | |
3299 | WSAStartup does not require any network interaction, | |
3300 | and in particular does not cause or require a dial-up | |
3301 | connection to be established. */ | |
3302 | ||
3303 | pfn_WSACleanup (); | |
3304 | FreeLibrary (winsock_lib); | |
3305 | winsock_lib = NULL; | |
3306 | } | |
3307 | winsock_inuse = 0; | |
3308 | return TRUE; | |
480b0c5b GV |
3309 | } |
3310 | ||
3311 | fail: | |
3312 | FreeLibrary (winsock_lib); | |
f249a012 | 3313 | winsock_lib = NULL; |
480b0c5b | 3314 | } |
f249a012 RS |
3315 | |
3316 | return FALSE; | |
480b0c5b GV |
3317 | } |
3318 | ||
3319 | ||
3320 | int h_errno = 0; | |
3321 | ||
3322 | /* function to set h_errno for compatability; map winsock error codes to | |
3323 | normal system codes where they overlap (non-overlapping definitions | |
3324 | are already in <sys/socket.h> */ | |
9bfb11f9 KS |
3325 | static void |
3326 | set_errno () | |
480b0c5b | 3327 | { |
f249a012 | 3328 | if (winsock_lib == NULL) |
480b0c5b GV |
3329 | h_errno = EINVAL; |
3330 | else | |
3331 | h_errno = pfn_WSAGetLastError (); | |
3332 | ||
3333 | switch (h_errno) | |
3334 | { | |
3335 | case WSAEACCES: h_errno = EACCES; break; | |
3336 | case WSAEBADF: h_errno = EBADF; break; | |
3337 | case WSAEFAULT: h_errno = EFAULT; break; | |
3338 | case WSAEINTR: h_errno = EINTR; break; | |
3339 | case WSAEINVAL: h_errno = EINVAL; break; | |
3340 | case WSAEMFILE: h_errno = EMFILE; break; | |
3341 | case WSAENAMETOOLONG: h_errno = ENAMETOOLONG; break; | |
3342 | case WSAENOTEMPTY: h_errno = ENOTEMPTY; break; | |
3343 | } | |
3344 | errno = h_errno; | |
3345 | } | |
3346 | ||
9bfb11f9 KS |
3347 | static void |
3348 | check_errno () | |
480b0c5b | 3349 | { |
f249a012 | 3350 | if (h_errno == 0 && winsock_lib != NULL) |
480b0c5b GV |
3351 | pfn_WSASetLastError (0); |
3352 | } | |
3353 | ||
d8fcc1b9 AI |
3354 | /* Extend strerror to handle the winsock-specific error codes. */ |
3355 | struct { | |
3356 | int errnum; | |
3357 | char * msg; | |
3358 | } _wsa_errlist[] = { | |
3359 | WSAEINTR , "Interrupted function call", | |
3360 | WSAEBADF , "Bad file descriptor", | |
3361 | WSAEACCES , "Permission denied", | |
3362 | WSAEFAULT , "Bad address", | |
3363 | WSAEINVAL , "Invalid argument", | |
3364 | WSAEMFILE , "Too many open files", | |
177c0ea7 | 3365 | |
d8fcc1b9 AI |
3366 | WSAEWOULDBLOCK , "Resource temporarily unavailable", |
3367 | WSAEINPROGRESS , "Operation now in progress", | |
3368 | WSAEALREADY , "Operation already in progress", | |
3369 | WSAENOTSOCK , "Socket operation on non-socket", | |
3370 | WSAEDESTADDRREQ , "Destination address required", | |
3371 | WSAEMSGSIZE , "Message too long", | |
3372 | WSAEPROTOTYPE , "Protocol wrong type for socket", | |
3373 | WSAENOPROTOOPT , "Bad protocol option", | |
3374 | WSAEPROTONOSUPPORT , "Protocol not supported", | |
3375 | WSAESOCKTNOSUPPORT , "Socket type not supported", | |
3376 | WSAEOPNOTSUPP , "Operation not supported", | |
3377 | WSAEPFNOSUPPORT , "Protocol family not supported", | |
3378 | WSAEAFNOSUPPORT , "Address family not supported by protocol family", | |
3379 | WSAEADDRINUSE , "Address already in use", | |
3380 | WSAEADDRNOTAVAIL , "Cannot assign requested address", | |
3381 | WSAENETDOWN , "Network is down", | |
3382 | WSAENETUNREACH , "Network is unreachable", | |
3383 | WSAENETRESET , "Network dropped connection on reset", | |
3384 | WSAECONNABORTED , "Software caused connection abort", | |
3385 | WSAECONNRESET , "Connection reset by peer", | |
3386 | WSAENOBUFS , "No buffer space available", | |
3387 | WSAEISCONN , "Socket is already connected", | |
3388 | WSAENOTCONN , "Socket is not connected", | |
3389 | WSAESHUTDOWN , "Cannot send after socket shutdown", | |
3390 | WSAETOOMANYREFS , "Too many references", /* not sure */ | |
3391 | WSAETIMEDOUT , "Connection timed out", | |
3392 | WSAECONNREFUSED , "Connection refused", | |
3393 | WSAELOOP , "Network loop", /* not sure */ | |
3394 | WSAENAMETOOLONG , "Name is too long", | |
3395 | WSAEHOSTDOWN , "Host is down", | |
3396 | WSAEHOSTUNREACH , "No route to host", | |
3397 | WSAENOTEMPTY , "Buffer not empty", /* not sure */ | |
3398 | WSAEPROCLIM , "Too many processes", | |
3399 | WSAEUSERS , "Too many users", /* not sure */ | |
3400 | WSAEDQUOT , "Double quote in host name", /* really not sure */ | |
3401 | WSAESTALE , "Data is stale", /* not sure */ | |
3402 | WSAEREMOTE , "Remote error", /* not sure */ | |
177c0ea7 | 3403 | |
d8fcc1b9 AI |
3404 | WSASYSNOTREADY , "Network subsystem is unavailable", |
3405 | WSAVERNOTSUPPORTED , "WINSOCK.DLL version out of range", | |
3406 | WSANOTINITIALISED , "Winsock not initialized successfully", | |
3407 | WSAEDISCON , "Graceful shutdown in progress", | |
3408 | #ifdef WSAENOMORE | |
3409 | WSAENOMORE , "No more operations allowed", /* not sure */ | |
3410 | WSAECANCELLED , "Operation cancelled", /* not sure */ | |
3411 | WSAEINVALIDPROCTABLE , "Invalid procedure table from service provider", | |
3412 | WSAEINVALIDPROVIDER , "Invalid service provider version number", | |
3413 | WSAEPROVIDERFAILEDINIT , "Unable to initialize a service provider", | |
aa5ee2a3 | 3414 | WSASYSCALLFAILURE , "System call failure", |
d8fcc1b9 AI |
3415 | WSASERVICE_NOT_FOUND , "Service not found", /* not sure */ |
3416 | WSATYPE_NOT_FOUND , "Class type not found", | |
3417 | WSA_E_NO_MORE , "No more resources available", /* really not sure */ | |
3418 | WSA_E_CANCELLED , "Operation already cancelled", /* really not sure */ | |
3419 | WSAEREFUSED , "Operation refused", /* not sure */ | |
3420 | #endif | |
177c0ea7 | 3421 | |
d8fcc1b9 AI |
3422 | WSAHOST_NOT_FOUND , "Host not found", |
3423 | WSATRY_AGAIN , "Authoritative host not found during name lookup", | |
3424 | WSANO_RECOVERY , "Non-recoverable error during name lookup", | |
3425 | WSANO_DATA , "Valid name, no data record of requested type", | |
3426 | ||
3427 | -1, NULL | |
3428 | }; | |
3429 | ||
3430 | char * | |
3431 | sys_strerror(int error_no) | |
3432 | { | |
3433 | int i; | |
3434 | static char unknown_msg[40]; | |
3435 | ||
a302c7ae AI |
3436 | if (error_no >= 0 && error_no < sys_nerr) |
3437 | return sys_errlist[error_no]; | |
d8fcc1b9 AI |
3438 | |
3439 | for (i = 0; _wsa_errlist[i].errnum >= 0; i++) | |
3440 | if (_wsa_errlist[i].errnum == error_no) | |
3441 | return _wsa_errlist[i].msg; | |
3442 | ||
3443 | sprintf(unknown_msg, "Unidentified error: %d", error_no); | |
3444 | return unknown_msg; | |
3445 | } | |
3446 | ||
480b0c5b GV |
3447 | /* [andrewi 3-May-96] I've had conflicting results using both methods, |
3448 | but I believe the method of keeping the socket handle separate (and | |
3449 | insuring it is not inheritable) is the correct one. */ | |
3450 | ||
3451 | //#define SOCK_REPLACE_HANDLE | |
3452 | ||
3453 | #ifdef SOCK_REPLACE_HANDLE | |
3454 | #define SOCK_HANDLE(fd) ((SOCKET) _get_osfhandle (fd)) | |
3455 | #else | |
3456 | #define SOCK_HANDLE(fd) ((SOCKET) fd_info[fd].hnd) | |
3457 | #endif | |
3458 | ||
962955c5 JR |
3459 | int socket_to_fd (SOCKET s); |
3460 | ||
480b0c5b GV |
3461 | int |
3462 | sys_socket(int af, int type, int protocol) | |
3463 | { | |
962955c5 | 3464 | SOCKET s; |
480b0c5b | 3465 | |
f249a012 | 3466 | if (winsock_lib == NULL) |
480b0c5b GV |
3467 | { |
3468 | h_errno = ENETDOWN; | |
3469 | return INVALID_SOCKET; | |
3470 | } | |
3471 | ||
3472 | check_errno (); | |
3473 | ||
3474 | /* call the real socket function */ | |
962955c5 | 3475 | s = pfn_socket (af, type, protocol); |
177c0ea7 | 3476 | |
480b0c5b | 3477 | if (s != INVALID_SOCKET) |
962955c5 | 3478 | return socket_to_fd (s); |
480b0c5b | 3479 | |
962955c5 JR |
3480 | set_errno (); |
3481 | return -1; | |
3482 | } | |
3483 | ||
3484 | /* Convert a SOCKET to a file descriptor. */ | |
3485 | int | |
3486 | socket_to_fd (SOCKET s) | |
3487 | { | |
3488 | int fd; | |
3489 | child_process * cp; | |
3490 | ||
3491 | /* Although under NT 3.5 _open_osfhandle will accept a socket | |
3492 | handle, if opened with SO_OPENTYPE == SO_SYNCHRONOUS_NONALERT, | |
3493 | that does not work under NT 3.1. However, we can get the same | |
3494 | effect by using a backdoor function to replace an existing | |
3495 | descriptor handle with the one we want. */ | |
3496 | ||
3497 | /* allocate a file descriptor (with appropriate flags) */ | |
3498 | fd = _open ("NUL:", _O_RDWR); | |
3499 | if (fd >= 0) | |
3500 | { | |
480b0c5b | 3501 | #ifdef SOCK_REPLACE_HANDLE |
962955c5 JR |
3502 | /* now replace handle to NUL with our socket handle */ |
3503 | CloseHandle ((HANDLE) _get_osfhandle (fd)); | |
3504 | _free_osfhnd (fd); | |
3505 | _set_osfhnd (fd, s); | |
3506 | /* setmode (fd, _O_BINARY); */ | |
480b0c5b | 3507 | #else |
962955c5 JR |
3508 | /* Make a non-inheritable copy of the socket handle. Note |
3509 | that it is possible that sockets aren't actually kernel | |
3510 | handles, which appears to be the case on Windows 9x when | |
3511 | the MS Proxy winsock client is installed. */ | |
3512 | { | |
3513 | /* Apparently there is a bug in NT 3.51 with some service | |
3514 | packs, which prevents using DuplicateHandle to make a | |
3515 | socket handle non-inheritable (causes WSACleanup to | |
3516 | hang). The work-around is to use SetHandleInformation | |
3517 | instead if it is available and implemented. */ | |
3518 | if (pfn_SetHandleInformation) | |
480b0c5b | 3519 | { |
962955c5 JR |
3520 | pfn_SetHandleInformation ((HANDLE) s, HANDLE_FLAG_INHERIT, 0); |
3521 | } | |
3522 | else | |
3523 | { | |
3524 | HANDLE parent = GetCurrentProcess (); | |
3525 | HANDLE new_s = INVALID_HANDLE_VALUE; | |
3526 | ||
3527 | if (DuplicateHandle (parent, | |
3528 | (HANDLE) s, | |
3529 | parent, | |
3530 | &new_s, | |
3531 | 0, | |
3532 | FALSE, | |
3533 | DUPLICATE_SAME_ACCESS)) | |
f1614061 | 3534 | { |
962955c5 JR |
3535 | /* It is possible that DuplicateHandle succeeds even |
3536 | though the socket wasn't really a kernel handle, | |
3537 | because a real handle has the same value. So | |
3538 | test whether the new handle really is a socket. */ | |
3539 | long nonblocking = 0; | |
3540 | if (pfn_ioctlsocket ((SOCKET) new_s, FIONBIO, &nonblocking) == 0) | |
ca149beb | 3541 | { |
962955c5 JR |
3542 | pfn_closesocket (s); |
3543 | s = (SOCKET) new_s; | |
3544 | } | |
3545 | else | |
3546 | { | |
3547 | CloseHandle (new_s); | |
3548 | } | |
177c0ea7 | 3549 | } |
480b0c5b | 3550 | } |
962955c5 JR |
3551 | } |
3552 | fd_info[fd].hnd = (HANDLE) s; | |
480b0c5b GV |
3553 | #endif |
3554 | ||
962955c5 JR |
3555 | /* set our own internal flags */ |
3556 | fd_info[fd].flags = FILE_SOCKET | FILE_BINARY | FILE_READ | FILE_WRITE; | |
480b0c5b | 3557 | |
962955c5 JR |
3558 | cp = new_child (); |
3559 | if (cp) | |
3560 | { | |
3561 | cp->fd = fd; | |
3562 | cp->status = STATUS_READ_ACKNOWLEDGED; | |
480b0c5b | 3563 | |
962955c5 JR |
3564 | /* attach child_process to fd_info */ |
3565 | if (fd_info[ fd ].cp != NULL) | |
3566 | { | |
3567 | DebPrint (("sys_socket: fd_info[%d] apparently in use!\n", fd)); | |
3568 | abort (); | |
480b0c5b GV |
3569 | } |
3570 | ||
962955c5 JR |
3571 | fd_info[ fd ].cp = cp; |
3572 | ||
3573 | /* success! */ | |
3574 | winsock_inuse++; /* count open sockets */ | |
3575 | return fd; | |
480b0c5b | 3576 | } |
480b0c5b | 3577 | |
962955c5 JR |
3578 | /* clean up */ |
3579 | _close (fd); | |
3580 | } | |
3581 | pfn_closesocket (s); | |
3582 | h_errno = EMFILE; | |
480b0c5b GV |
3583 | return -1; |
3584 | } | |
3585 | ||
3586 | ||
3587 | int | |
3588 | sys_bind (int s, const struct sockaddr * addr, int namelen) | |
3589 | { | |
f249a012 | 3590 | if (winsock_lib == NULL) |
480b0c5b GV |
3591 | { |
3592 | h_errno = ENOTSOCK; | |
3593 | return SOCKET_ERROR; | |
3594 | } | |
3595 | ||
3596 | check_errno (); | |
3597 | if (fd_info[s].flags & FILE_SOCKET) | |
3598 | { | |
3599 | int rc = pfn_bind (SOCK_HANDLE (s), addr, namelen); | |
3600 | if (rc == SOCKET_ERROR) | |
3601 | set_errno (); | |
3602 | return rc; | |
3603 | } | |
3604 | h_errno = ENOTSOCK; | |
3605 | return SOCKET_ERROR; | |
3606 | } | |
3607 | ||
3608 | ||
3609 | int | |
3610 | sys_connect (int s, const struct sockaddr * name, int namelen) | |
3611 | { | |
f249a012 | 3612 | if (winsock_lib == NULL) |
480b0c5b GV |
3613 | { |
3614 | h_errno = ENOTSOCK; | |
3615 | return SOCKET_ERROR; | |
3616 | } | |
3617 | ||
3618 | check_errno (); | |
3619 | if (fd_info[s].flags & FILE_SOCKET) | |
3620 | { | |
3621 | int rc = pfn_connect (SOCK_HANDLE (s), name, namelen); | |
3622 | if (rc == SOCKET_ERROR) | |
3623 | set_errno (); | |
3624 | return rc; | |
3625 | } | |
3626 | h_errno = ENOTSOCK; | |
3627 | return SOCKET_ERROR; | |
3628 | } | |
3629 | ||
3630 | u_short | |
3631 | sys_htons (u_short hostshort) | |
3632 | { | |
f249a012 | 3633 | return (winsock_lib != NULL) ? |
480b0c5b GV |
3634 | pfn_htons (hostshort) : hostshort; |
3635 | } | |
3636 | ||
3637 | u_short | |
3638 | sys_ntohs (u_short netshort) | |
3639 | { | |
f249a012 | 3640 | return (winsock_lib != NULL) ? |
480b0c5b GV |
3641 | pfn_ntohs (netshort) : netshort; |
3642 | } | |
3643 | ||
3644 | unsigned long | |
3645 | sys_inet_addr (const char * cp) | |
3646 | { | |
f249a012 | 3647 | return (winsock_lib != NULL) ? |
480b0c5b GV |
3648 | pfn_inet_addr (cp) : INADDR_NONE; |
3649 | } | |
3650 | ||
3651 | int | |
3652 | sys_gethostname (char * name, int namelen) | |
3653 | { | |
f249a012 | 3654 | if (winsock_lib != NULL) |
480b0c5b GV |
3655 | return pfn_gethostname (name, namelen); |
3656 | ||
3657 | if (namelen > MAX_COMPUTERNAME_LENGTH) | |
a302c7ae | 3658 | return !GetComputerName (name, (DWORD *)&namelen); |
480b0c5b GV |
3659 | |
3660 | h_errno = EFAULT; | |
3661 | return SOCKET_ERROR; | |
3662 | } | |
3663 | ||
3664 | struct hostent * | |
3665 | sys_gethostbyname(const char * name) | |
3666 | { | |
3667 | struct hostent * host; | |
3668 | ||
f249a012 | 3669 | if (winsock_lib == NULL) |
480b0c5b GV |
3670 | { |
3671 | h_errno = ENETDOWN; | |
3672 | return NULL; | |
3673 | } | |
3674 | ||
3675 | check_errno (); | |
3676 | host = pfn_gethostbyname (name); | |
3677 | if (!host) | |
3678 | set_errno (); | |
3679 | return host; | |
3680 | } | |
3681 | ||
3682 | struct servent * | |
3683 | sys_getservbyname(const char * name, const char * proto) | |
3684 | { | |
3685 | struct servent * serv; | |
3686 | ||
f249a012 | 3687 | if (winsock_lib == NULL) |
480b0c5b GV |
3688 | { |
3689 | h_errno = ENETDOWN; | |
3690 | return NULL; | |
3691 | } | |
3692 | ||
3693 | check_errno (); | |
3694 | serv = pfn_getservbyname (name, proto); | |
3695 | if (!serv) | |
3696 | set_errno (); | |
3697 | return serv; | |
3698 | } | |
3699 | ||
ecd270eb JR |
3700 | int |
3701 | sys_getpeername (int s, struct sockaddr *addr, int * namelen) | |
3702 | { | |
3703 | if (winsock_lib == NULL) | |
3704 | { | |
3705 | h_errno = ENETDOWN; | |
3706 | return SOCKET_ERROR; | |
3707 | } | |
3708 | ||
3709 | check_errno (); | |
3710 | if (fd_info[s].flags & FILE_SOCKET) | |
3711 | { | |
3712 | int rc = pfn_getpeername (SOCK_HANDLE (s), addr, namelen); | |
3713 | if (rc == SOCKET_ERROR) | |
3714 | set_errno (); | |
3715 | return rc; | |
3716 | } | |
3717 | h_errno = ENOTSOCK; | |
3718 | return SOCKET_ERROR; | |
3719 | } | |
3720 | ||
3721 | ||
380961a6 GV |
3722 | int |
3723 | sys_shutdown (int s, int how) | |
3724 | { | |
380961a6 GV |
3725 | if (winsock_lib == NULL) |
3726 | { | |
3727 | h_errno = ENETDOWN; | |
3728 | return SOCKET_ERROR; | |
3729 | } | |
3730 | ||
3731 | check_errno (); | |
3732 | if (fd_info[s].flags & FILE_SOCKET) | |
3733 | { | |
3734 | int rc = pfn_shutdown (SOCK_HANDLE (s), how); | |
962955c5 JR |
3735 | if (rc == SOCKET_ERROR) |
3736 | set_errno (); | |
3737 | return rc; | |
3738 | } | |
3739 | h_errno = ENOTSOCK; | |
3740 | return SOCKET_ERROR; | |
3741 | } | |
3742 | ||
3743 | int | |
a5a389bb | 3744 | sys_setsockopt (int s, int level, int optname, const void * optval, int optlen) |
962955c5 JR |
3745 | { |
3746 | if (winsock_lib == NULL) | |
3747 | { | |
3748 | h_errno = ENETDOWN; | |
3749 | return SOCKET_ERROR; | |
3750 | } | |
3751 | ||
3752 | check_errno (); | |
3753 | if (fd_info[s].flags & FILE_SOCKET) | |
3754 | { | |
3755 | int rc = pfn_setsockopt (SOCK_HANDLE (s), level, optname, | |
a5a389bb | 3756 | (const char *)optval, optlen); |
962955c5 JR |
3757 | if (rc == SOCKET_ERROR) |
3758 | set_errno (); | |
3759 | return rc; | |
3760 | } | |
3761 | h_errno = ENOTSOCK; | |
177c0ea7 | 3762 | return SOCKET_ERROR; |
962955c5 JR |
3763 | } |
3764 | ||
3765 | int | |
3766 | sys_listen (int s, int backlog) | |
3767 | { | |
3768 | if (winsock_lib == NULL) | |
3769 | { | |
3770 | h_errno = ENETDOWN; | |
3771 | return SOCKET_ERROR; | |
3772 | } | |
3773 | ||
3774 | check_errno (); | |
3775 | if (fd_info[s].flags & FILE_SOCKET) | |
3776 | { | |
3777 | int rc = pfn_listen (SOCK_HANDLE (s), backlog); | |
3778 | if (rc == SOCKET_ERROR) | |
3779 | set_errno (); | |
26fb7bc4 | 3780 | else |
64570b36 | 3781 | fd_info[s].flags |= FILE_LISTEN; |
962955c5 JR |
3782 | return rc; |
3783 | } | |
3784 | h_errno = ENOTSOCK; | |
177c0ea7 | 3785 | return SOCKET_ERROR; |
962955c5 JR |
3786 | } |
3787 | ||
3788 | int | |
3789 | sys_getsockname (int s, struct sockaddr * name, int * namelen) | |
3790 | { | |
3791 | if (winsock_lib == NULL) | |
3792 | { | |
3793 | h_errno = ENETDOWN; | |
3794 | return SOCKET_ERROR; | |
3795 | } | |
3796 | ||
3797 | check_errno (); | |
3798 | if (fd_info[s].flags & FILE_SOCKET) | |
3799 | { | |
3800 | int rc = pfn_getsockname (SOCK_HANDLE (s), name, namelen); | |
3801 | if (rc == SOCKET_ERROR) | |
3802 | set_errno (); | |
3803 | return rc; | |
3804 | } | |
3805 | h_errno = ENOTSOCK; | |
177c0ea7 | 3806 | return SOCKET_ERROR; |
962955c5 JR |
3807 | } |
3808 | ||
3809 | int | |
3810 | sys_accept (int s, struct sockaddr * addr, int * addrlen) | |
3811 | { | |
3812 | if (winsock_lib == NULL) | |
3813 | { | |
3814 | h_errno = ENETDOWN; | |
3815 | return -1; | |
3816 | } | |
3817 | ||
3818 | check_errno (); | |
26fb7bc4 | 3819 | if (fd_info[s].flags & FILE_LISTEN) |
962955c5 | 3820 | { |
a0ad1860 | 3821 | SOCKET t = pfn_accept (SOCK_HANDLE (s), addr, addrlen); |
64570b36 KS |
3822 | int fd = -1; |
3823 | if (t == INVALID_SOCKET) | |
3824 | set_errno (); | |
3825 | else | |
3826 | fd = socket_to_fd (t); | |
962955c5 | 3827 | |
64570b36 KS |
3828 | fd_info[s].cp->status = STATUS_READ_ACKNOWLEDGED; |
3829 | ResetEvent (fd_info[s].cp->char_avail); | |
3830 | return fd; | |
962955c5 JR |
3831 | } |
3832 | h_errno = ENOTSOCK; | |
3833 | return -1; | |
3834 | } | |
3835 | ||
3836 | int | |
3837 | sys_recvfrom (int s, char * buf, int len, int flags, | |
3838 | struct sockaddr * from, int * fromlen) | |
3839 | { | |
3840 | if (winsock_lib == NULL) | |
3841 | { | |
3842 | h_errno = ENETDOWN; | |
3843 | return SOCKET_ERROR; | |
3844 | } | |
3845 | ||
3846 | check_errno (); | |
3847 | if (fd_info[s].flags & FILE_SOCKET) | |
3848 | { | |
3849 | int rc = pfn_recvfrom (SOCK_HANDLE (s), buf, len, flags, from, fromlen); | |
3850 | if (rc == SOCKET_ERROR) | |
3851 | set_errno (); | |
3852 | return rc; | |
3853 | } | |
3854 | h_errno = ENOTSOCK; | |
3855 | return SOCKET_ERROR; | |
3856 | } | |
3857 | ||
3858 | int | |
3859 | sys_sendto (int s, const char * buf, int len, int flags, | |
3860 | const struct sockaddr * to, int tolen) | |
3861 | { | |
3862 | if (winsock_lib == NULL) | |
3863 | { | |
3864 | h_errno = ENETDOWN; | |
3865 | return SOCKET_ERROR; | |
3866 | } | |
3867 | ||
3868 | check_errno (); | |
3869 | if (fd_info[s].flags & FILE_SOCKET) | |
3870 | { | |
3871 | int rc = pfn_sendto (SOCK_HANDLE (s), buf, len, flags, to, tolen); | |
380961a6 GV |
3872 | if (rc == SOCKET_ERROR) |
3873 | set_errno (); | |
3874 | return rc; | |
3875 | } | |
3876 | h_errno = ENOTSOCK; | |
3877 | return SOCKET_ERROR; | |
3878 | } | |
3879 | ||
ecd270eb JR |
3880 | /* Windows does not have an fcntl function. Provide an implementation |
3881 | solely for making sockets non-blocking. */ | |
3882 | int | |
3883 | fcntl (int s, int cmd, int options) | |
3884 | { | |
3885 | if (winsock_lib == NULL) | |
3886 | { | |
3887 | h_errno = ENETDOWN; | |
3888 | return -1; | |
3889 | } | |
3890 | ||
3891 | check_errno (); | |
3892 | if (fd_info[s].flags & FILE_SOCKET) | |
3893 | { | |
3894 | if (cmd == F_SETFL && options == O_NDELAY) | |
3895 | { | |
3896 | unsigned long nblock = 1; | |
3897 | int rc = pfn_ioctlsocket (SOCK_HANDLE (s), FIONBIO, &nblock); | |
3898 | if (rc == SOCKET_ERROR) | |
3899 | set_errno(); | |
3900 | /* Keep track of the fact that we set this to non-blocking. */ | |
3901 | fd_info[s].flags |= FILE_NDELAY; | |
3902 | return rc; | |
3903 | } | |
3904 | else | |
3905 | { | |
3906 | h_errno = EINVAL; | |
3907 | return SOCKET_ERROR; | |
3908 | } | |
3909 | } | |
3910 | h_errno = ENOTSOCK; | |
3911 | return SOCKET_ERROR; | |
3912 | } | |
3913 | ||
480b0c5b GV |
3914 | #endif /* HAVE_SOCKETS */ |
3915 | ||
3916 | ||
3917 | /* Shadow main io functions: we need to handle pipes and sockets more | |
3918 | intelligently, and implement non-blocking mode as well. */ | |
3919 | ||
3920 | int | |
3921 | sys_close (int fd) | |
3922 | { | |
3923 | int rc; | |
3924 | ||
7559f399 | 3925 | if (fd < 0) |
480b0c5b GV |
3926 | { |
3927 | errno = EBADF; | |
3928 | return -1; | |
3929 | } | |
3930 | ||
7559f399 | 3931 | if (fd < MAXDESC && fd_info[fd].cp) |
480b0c5b GV |
3932 | { |
3933 | child_process * cp = fd_info[fd].cp; | |
3934 | ||
3935 | fd_info[fd].cp = NULL; | |
3936 | ||
3937 | if (CHILD_ACTIVE (cp)) | |
3938 | { | |
3939 | /* if last descriptor to active child_process then cleanup */ | |
3940 | int i; | |
3941 | for (i = 0; i < MAXDESC; i++) | |
3942 | { | |
3943 | if (i == fd) | |
3944 | continue; | |
3945 | if (fd_info[i].cp == cp) | |
3946 | break; | |
3947 | } | |
3948 | if (i == MAXDESC) | |
3949 | { | |
f249a012 | 3950 | #ifdef HAVE_SOCKETS |
480b0c5b GV |
3951 | if (fd_info[fd].flags & FILE_SOCKET) |
3952 | { | |
f249a012 RS |
3953 | #ifndef SOCK_REPLACE_HANDLE |
3954 | if (winsock_lib == NULL) abort (); | |
480b0c5b GV |
3955 | |
3956 | pfn_shutdown (SOCK_HANDLE (fd), 2); | |
3957 | rc = pfn_closesocket (SOCK_HANDLE (fd)); | |
f249a012 RS |
3958 | #endif |
3959 | winsock_inuse--; /* count open sockets */ | |
480b0c5b GV |
3960 | } |
3961 | #endif | |
3962 | delete_child (cp); | |
3963 | } | |
3964 | } | |
3965 | } | |
3966 | ||
3967 | /* Note that sockets do not need special treatment here (at least on | |
e9e23e23 | 3968 | NT and Windows 95 using the standard tcp/ip stacks) - it appears that |
480b0c5b GV |
3969 | closesocket is equivalent to CloseHandle, which is to be expected |
3970 | because socket handles are fully fledged kernel handles. */ | |
3971 | rc = _close (fd); | |
3972 | ||
7559f399 | 3973 | if (rc == 0 && fd < MAXDESC) |
480b0c5b GV |
3974 | fd_info[fd].flags = 0; |
3975 | ||
3976 | return rc; | |
3977 | } | |
3978 | ||
3979 | int | |
3980 | sys_dup (int fd) | |
3981 | { | |
3982 | int new_fd; | |
3983 | ||
3984 | new_fd = _dup (fd); | |
7559f399 | 3985 | if (new_fd >= 0 && new_fd < MAXDESC) |
480b0c5b GV |
3986 | { |
3987 | /* duplicate our internal info as well */ | |
3988 | fd_info[new_fd] = fd_info[fd]; | |
3989 | } | |
3990 | return new_fd; | |
3991 | } | |
3992 | ||
3993 | ||
3994 | int | |
3995 | sys_dup2 (int src, int dst) | |
3996 | { | |
3997 | int rc; | |
3998 | ||
3999 | if (dst < 0 || dst >= MAXDESC) | |
4000 | { | |
4001 | errno = EBADF; | |
4002 | return -1; | |
4003 | } | |
4004 | ||
4005 | /* make sure we close the destination first if it's a pipe or socket */ | |
4006 | if (src != dst && fd_info[dst].flags != 0) | |
4007 | sys_close (dst); | |
177c0ea7 | 4008 | |
480b0c5b GV |
4009 | rc = _dup2 (src, dst); |
4010 | if (rc == 0) | |
4011 | { | |
4012 | /* duplicate our internal info as well */ | |
4013 | fd_info[dst] = fd_info[src]; | |
4014 | } | |
4015 | return rc; | |
4016 | } | |
4017 | ||
480b0c5b GV |
4018 | /* Unix pipe() has only one arg */ |
4019 | int | |
4020 | sys_pipe (int * phandles) | |
4021 | { | |
4022 | int rc; | |
4023 | unsigned flags; | |
480b0c5b | 4024 | |
76b3903d GV |
4025 | /* make pipe handles non-inheritable; when we spawn a child, we |
4026 | replace the relevant handle with an inheritable one. Also put | |
4027 | pipes into binary mode; we will do text mode translation ourselves | |
4028 | if required. */ | |
4029 | rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY); | |
480b0c5b GV |
4030 | |
4031 | if (rc == 0) | |
4032 | { | |
cb72110d JR |
4033 | /* Protect against overflow, since Windows can open more handles than |
4034 | our fd_info array has room for. */ | |
4035 | if (phandles[0] >= MAXDESC || phandles[1] >= MAXDESC) | |
4036 | { | |
4037 | _close (phandles[0]); | |
4038 | _close (phandles[1]); | |
4039 | rc = -1; | |
4040 | } | |
4041 | else | |
4042 | { | |
4043 | flags = FILE_PIPE | FILE_READ | FILE_BINARY; | |
4044 | fd_info[phandles[0]].flags = flags; | |
480b0c5b | 4045 | |
cb72110d JR |
4046 | flags = FILE_PIPE | FILE_WRITE | FILE_BINARY; |
4047 | fd_info[phandles[1]].flags = flags; | |
4048 | } | |
480b0c5b GV |
4049 | } |
4050 | ||
4051 | return rc; | |
4052 | } | |
4053 | ||
f7554349 | 4054 | /* From ntproc.c */ |
78806724 | 4055 | extern int w32_pipe_read_delay; |
f7554349 | 4056 | |
480b0c5b GV |
4057 | /* Function to do blocking read of one byte, needed to implement |
4058 | select. It is only allowed on sockets and pipes. */ | |
4059 | int | |
4060 | _sys_read_ahead (int fd) | |
4061 | { | |
4062 | child_process * cp; | |
4063 | int rc; | |
4064 | ||
4065 | if (fd < 0 || fd >= MAXDESC) | |
4066 | return STATUS_READ_ERROR; | |
4067 | ||
4068 | cp = fd_info[fd].cp; | |
4069 | ||
4070 | if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY) | |
4071 | return STATUS_READ_ERROR; | |
4072 | ||
d888760c | 4073 | if ((fd_info[fd].flags & (FILE_PIPE | FILE_SERIAL | FILE_SOCKET)) == 0 |
480b0c5b GV |
4074 | || (fd_info[fd].flags & FILE_READ) == 0) |
4075 | { | |
d888760c | 4076 | DebPrint (("_sys_read_ahead: internal error: fd %d is not a pipe, serial port, or socket!\n", fd)); |
480b0c5b GV |
4077 | abort (); |
4078 | } | |
177c0ea7 | 4079 | |
480b0c5b | 4080 | cp->status = STATUS_READ_IN_PROGRESS; |
177c0ea7 | 4081 | |
480b0c5b | 4082 | if (fd_info[fd].flags & FILE_PIPE) |
f7554349 | 4083 | { |
f7554349 KH |
4084 | rc = _read (fd, &cp->chr, sizeof (char)); |
4085 | ||
4086 | /* Give subprocess time to buffer some more output for us before | |
e9e23e23 | 4087 | reporting that input is available; we need this because Windows 95 |
f7554349 KH |
4088 | connects DOS programs to pipes by making the pipe appear to be |
4089 | the normal console stdout - as a result most DOS programs will | |
d888760c | 4090 | write to stdout without buffering, ie. one character at a |
fbd6baed | 4091 | time. Even some W32 programs do this - "dir" in a command |
f7554349 KH |
4092 | shell on NT is very slow if we don't do this. */ |
4093 | if (rc > 0) | |
4094 | { | |
78806724 | 4095 | int wait = w32_pipe_read_delay; |
f7554349 KH |
4096 | |
4097 | if (wait > 0) | |
4098 | Sleep (wait); | |
4099 | else if (wait < 0) | |
4100 | while (++wait <= 0) | |
4101 | /* Yield remainder of our time slice, effectively giving a | |
4102 | temporary priority boost to the child process. */ | |
4103 | Sleep (0); | |
4104 | } | |
4105 | } | |
d888760c GM |
4106 | else if (fd_info[fd].flags & FILE_SERIAL) |
4107 | { | |
4108 | HANDLE hnd = fd_info[fd].hnd; | |
4109 | OVERLAPPED *ovl = &fd_info[fd].cp->ovl_read; | |
4110 | COMMTIMEOUTS ct; | |
4111 | ||
4112 | /* Configure timeouts for blocking read. */ | |
4113 | if (!GetCommTimeouts (hnd, &ct)) | |
4114 | return STATUS_READ_ERROR; | |
4115 | ct.ReadIntervalTimeout = 0; | |
4116 | ct.ReadTotalTimeoutMultiplier = 0; | |
4117 | ct.ReadTotalTimeoutConstant = 0; | |
4118 | if (!SetCommTimeouts (hnd, &ct)) | |
4119 | return STATUS_READ_ERROR; | |
4120 | ||
4121 | if (!ReadFile (hnd, &cp->chr, sizeof (char), (DWORD*) &rc, ovl)) | |
4122 | { | |
4123 | if (GetLastError () != ERROR_IO_PENDING) | |
4124 | return STATUS_READ_ERROR; | |
4125 | if (!GetOverlappedResult (hnd, ovl, (DWORD*) &rc, TRUE)) | |
4126 | return STATUS_READ_ERROR; | |
4127 | } | |
4128 | } | |
480b0c5b GV |
4129 | #ifdef HAVE_SOCKETS |
4130 | else if (fd_info[fd].flags & FILE_SOCKET) | |
ecd270eb JR |
4131 | { |
4132 | unsigned long nblock = 0; | |
4133 | /* We always want this to block, so temporarily disable NDELAY. */ | |
4134 | if (fd_info[fd].flags & FILE_NDELAY) | |
4135 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4136 | ||
4137 | rc = pfn_recv (SOCK_HANDLE (fd), &cp->chr, sizeof (char), 0); | |
4138 | ||
4139 | if (fd_info[fd].flags & FILE_NDELAY) | |
4140 | { | |
4141 | nblock = 1; | |
4142 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4143 | } | |
4144 | } | |
480b0c5b | 4145 | #endif |
177c0ea7 | 4146 | |
480b0c5b GV |
4147 | if (rc == sizeof (char)) |
4148 | cp->status = STATUS_READ_SUCCEEDED; | |
4149 | else | |
4150 | cp->status = STATUS_READ_FAILED; | |
4151 | ||
4152 | return cp->status; | |
4153 | } | |
4154 | ||
9bfb11f9 KS |
4155 | int |
4156 | _sys_wait_accept (int fd) | |
64570b36 KS |
4157 | { |
4158 | HANDLE hEv; | |
4159 | child_process * cp; | |
4160 | int rc; | |
4161 | ||
4162 | if (fd < 0 || fd >= MAXDESC) | |
4163 | return STATUS_READ_ERROR; | |
4164 | ||
4165 | cp = fd_info[fd].cp; | |
4166 | ||
4167 | if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY) | |
4168 | return STATUS_READ_ERROR; | |
4169 | ||
4170 | cp->status = STATUS_READ_FAILED; | |
4171 | ||
4172 | hEv = pfn_WSACreateEvent (); | |
4173 | rc = pfn_WSAEventSelect (SOCK_HANDLE (fd), hEv, FD_ACCEPT); | |
4174 | if (rc != SOCKET_ERROR) | |
4175 | { | |
4176 | rc = WaitForSingleObject (hEv, INFINITE); | |
4177 | pfn_WSAEventSelect (SOCK_HANDLE (fd), NULL, 0); | |
64570b36 KS |
4178 | if (rc == WAIT_OBJECT_0) |
4179 | cp->status = STATUS_READ_SUCCEEDED; | |
4180 | } | |
7046f191 | 4181 | pfn_WSACloseEvent (hEv); |
64570b36 KS |
4182 | |
4183 | return cp->status; | |
4184 | } | |
4185 | ||
480b0c5b GV |
4186 | int |
4187 | sys_read (int fd, char * buffer, unsigned int count) | |
4188 | { | |
4189 | int nchars; | |
480b0c5b GV |
4190 | int to_read; |
4191 | DWORD waiting; | |
76b3903d | 4192 | char * orig_buffer = buffer; |
480b0c5b | 4193 | |
7559f399 | 4194 | if (fd < 0) |
480b0c5b GV |
4195 | { |
4196 | errno = EBADF; | |
4197 | return -1; | |
4198 | } | |
4199 | ||
d888760c | 4200 | if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET | FILE_SERIAL)) |
480b0c5b GV |
4201 | { |
4202 | child_process *cp = fd_info[fd].cp; | |
4203 | ||
4204 | if ((fd_info[fd].flags & FILE_READ) == 0) | |
4205 | { | |
4206 | errno = EBADF; | |
4207 | return -1; | |
4208 | } | |
4209 | ||
76b3903d GV |
4210 | nchars = 0; |
4211 | ||
4212 | /* re-read CR carried over from last read */ | |
4213 | if (fd_info[fd].flags & FILE_LAST_CR) | |
4214 | { | |
4215 | if (fd_info[fd].flags & FILE_BINARY) abort (); | |
4216 | *buffer++ = 0x0d; | |
4217 | count--; | |
4218 | nchars++; | |
f52eb3ef | 4219 | fd_info[fd].flags &= ~FILE_LAST_CR; |
76b3903d GV |
4220 | } |
4221 | ||
480b0c5b GV |
4222 | /* presence of a child_process structure means we are operating in |
4223 | non-blocking mode - otherwise we just call _read directly. | |
4224 | Note that the child_process structure might be missing because | |
4225 | reap_subprocess has been called; in this case the pipe is | |
4226 | already broken, so calling _read on it is okay. */ | |
4227 | if (cp) | |
4228 | { | |
4229 | int current_status = cp->status; | |
4230 | ||
4231 | switch (current_status) | |
4232 | { | |
4233 | case STATUS_READ_FAILED: | |
4234 | case STATUS_READ_ERROR: | |
f52eb3ef GV |
4235 | /* report normal EOF if nothing in buffer */ |
4236 | if (nchars <= 0) | |
4237 | fd_info[fd].flags |= FILE_AT_EOF; | |
4238 | return nchars; | |
480b0c5b GV |
4239 | |
4240 | case STATUS_READ_READY: | |
4241 | case STATUS_READ_IN_PROGRESS: | |
4242 | DebPrint (("sys_read called when read is in progress\n")); | |
4243 | errno = EWOULDBLOCK; | |
4244 | return -1; | |
4245 | ||
4246 | case STATUS_READ_SUCCEEDED: | |
4247 | /* consume read-ahead char */ | |
4248 | *buffer++ = cp->chr; | |
4249 | count--; | |
76b3903d | 4250 | nchars++; |
480b0c5b GV |
4251 | cp->status = STATUS_READ_ACKNOWLEDGED; |
4252 | ResetEvent (cp->char_avail); | |
4253 | ||
4254 | case STATUS_READ_ACKNOWLEDGED: | |
4255 | break; | |
4256 | ||
4257 | default: | |
4258 | DebPrint (("sys_read: bad status %d\n", current_status)); | |
4259 | errno = EBADF; | |
4260 | return -1; | |
4261 | } | |
4262 | ||
4263 | if (fd_info[fd].flags & FILE_PIPE) | |
4264 | { | |
4265 | PeekNamedPipe ((HANDLE) _get_osfhandle (fd), NULL, 0, NULL, &waiting, NULL); | |
4266 | to_read = min (waiting, (DWORD) count); | |
f52eb3ef GV |
4267 | |
4268 | if (to_read > 0) | |
4269 | nchars += _read (fd, buffer, to_read); | |
480b0c5b | 4270 | } |
d888760c GM |
4271 | else if (fd_info[fd].flags & FILE_SERIAL) |
4272 | { | |
4273 | HANDLE hnd = fd_info[fd].hnd; | |
4274 | OVERLAPPED *ovl = &fd_info[fd].cp->ovl_read; | |
4275 | DWORD err = 0; | |
4276 | int rc = 0; | |
4277 | COMMTIMEOUTS ct; | |
4278 | ||
4279 | if (count > 0) | |
4280 | { | |
4281 | /* Configure timeouts for non-blocking read. */ | |
4282 | if (!GetCommTimeouts (hnd, &ct)) | |
4283 | { | |
4284 | errno = EIO; | |
4285 | return -1; | |
4286 | } | |
4287 | ct.ReadIntervalTimeout = MAXDWORD; | |
4288 | ct.ReadTotalTimeoutMultiplier = 0; | |
4289 | ct.ReadTotalTimeoutConstant = 0; | |
4290 | if (!SetCommTimeouts (hnd, &ct)) | |
4291 | { | |
4292 | errno = EIO; | |
4293 | return -1; | |
4294 | } | |
4295 | ||
4296 | if (!ResetEvent (ovl->hEvent)) | |
4297 | { | |
4298 | errno = EIO; | |
4299 | return -1; | |
4300 | } | |
4301 | if (!ReadFile (hnd, buffer, count, (DWORD*) &rc, ovl)) | |
4302 | { | |
4303 | if (GetLastError () != ERROR_IO_PENDING) | |
4304 | { | |
4305 | errno = EIO; | |
4306 | return -1; | |
4307 | } | |
4308 | if (!GetOverlappedResult (hnd, ovl, (DWORD*) &rc, TRUE)) | |
4309 | { | |
4310 | errno = EIO; | |
4311 | return -1; | |
4312 | } | |
4313 | } | |
4314 | nchars += rc; | |
4315 | } | |
4316 | } | |
480b0c5b GV |
4317 | #ifdef HAVE_SOCKETS |
4318 | else /* FILE_SOCKET */ | |
4319 | { | |
f249a012 | 4320 | if (winsock_lib == NULL) abort (); |
480b0c5b GV |
4321 | |
4322 | /* do the equivalent of a non-blocking read */ | |
4323 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONREAD, &waiting); | |
76b3903d | 4324 | if (waiting == 0 && nchars == 0) |
480b0c5b GV |
4325 | { |
4326 | h_errno = errno = EWOULDBLOCK; | |
4327 | return -1; | |
4328 | } | |
4329 | ||
480b0c5b GV |
4330 | if (waiting) |
4331 | { | |
4332 | /* always use binary mode for sockets */ | |
76b3903d GV |
4333 | int res = pfn_recv (SOCK_HANDLE (fd), buffer, count, 0); |
4334 | if (res == SOCKET_ERROR) | |
480b0c5b GV |
4335 | { |
4336 | DebPrint(("sys_read.recv failed with error %d on socket %ld\n", | |
4337 | pfn_WSAGetLastError (), SOCK_HANDLE (fd))); | |
76b3903d GV |
4338 | set_errno (); |
4339 | return -1; | |
480b0c5b | 4340 | } |
76b3903d | 4341 | nchars += res; |
480b0c5b GV |
4342 | } |
4343 | } | |
4344 | #endif | |
4345 | } | |
4346 | else | |
f52eb3ef GV |
4347 | { |
4348 | int nread = _read (fd, buffer, count); | |
4349 | if (nread >= 0) | |
4350 | nchars += nread; | |
4351 | else if (nchars == 0) | |
4352 | nchars = nread; | |
4353 | } | |
76b3903d | 4354 | |
f52eb3ef GV |
4355 | if (nchars <= 0) |
4356 | fd_info[fd].flags |= FILE_AT_EOF; | |
76b3903d | 4357 | /* Perform text mode translation if required. */ |
f52eb3ef | 4358 | else if ((fd_info[fd].flags & FILE_BINARY) == 0) |
76b3903d GV |
4359 | { |
4360 | nchars = crlf_to_lf (nchars, orig_buffer); | |
4361 | /* If buffer contains only CR, return that. To be absolutely | |
4362 | sure we should attempt to read the next char, but in | |
4363 | practice a CR to be followed by LF would not appear by | |
4364 | itself in the buffer. */ | |
4365 | if (nchars > 1 && orig_buffer[nchars - 1] == 0x0d) | |
4366 | { | |
4367 | fd_info[fd].flags |= FILE_LAST_CR; | |
4368 | nchars--; | |
4369 | } | |
76b3903d | 4370 | } |
480b0c5b GV |
4371 | } |
4372 | else | |
4373 | nchars = _read (fd, buffer, count); | |
4374 | ||
76b3903d | 4375 | return nchars; |
480b0c5b GV |
4376 | } |
4377 | ||
d888760c GM |
4378 | /* From w32xfns.c */ |
4379 | extern HANDLE interrupt_handle; | |
4380 | ||
480b0c5b GV |
4381 | /* For now, don't bother with a non-blocking mode */ |
4382 | int | |
4383 | sys_write (int fd, const void * buffer, unsigned int count) | |
4384 | { | |
4385 | int nchars; | |
4386 | ||
7559f399 | 4387 | if (fd < 0) |
480b0c5b GV |
4388 | { |
4389 | errno = EBADF; | |
4390 | return -1; | |
4391 | } | |
4392 | ||
d888760c | 4393 | if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET | FILE_SERIAL)) |
76b3903d GV |
4394 | { |
4395 | if ((fd_info[fd].flags & FILE_WRITE) == 0) | |
4396 | { | |
4397 | errno = EBADF; | |
4398 | return -1; | |
4399 | } | |
4400 | ||
4401 | /* Perform text mode translation if required. */ | |
4402 | if ((fd_info[fd].flags & FILE_BINARY) == 0) | |
4403 | { | |
4404 | char * tmpbuf = alloca (count * 2); | |
4405 | unsigned char * src = (void *)buffer; | |
4406 | unsigned char * dst = tmpbuf; | |
4407 | int nbytes = count; | |
4408 | ||
4409 | while (1) | |
4410 | { | |
4411 | unsigned char *next; | |
4412 | /* copy next line or remaining bytes */ | |
4413 | next = _memccpy (dst, src, '\n', nbytes); | |
4414 | if (next) | |
4415 | { | |
4416 | /* copied one line ending with '\n' */ | |
4417 | int copied = next - dst; | |
4418 | nbytes -= copied; | |
4419 | src += copied; | |
4420 | /* insert '\r' before '\n' */ | |
4421 | next[-1] = '\r'; | |
4422 | next[0] = '\n'; | |
4423 | dst = next + 1; | |
4424 | count++; | |
177c0ea7 | 4425 | } |
76b3903d GV |
4426 | else |
4427 | /* copied remaining partial line -> now finished */ | |
4428 | break; | |
4429 | } | |
4430 | buffer = tmpbuf; | |
4431 | } | |
4432 | } | |
4433 | ||
d888760c GM |
4434 | if (fd < MAXDESC && fd_info[fd].flags & FILE_SERIAL) |
4435 | { | |
4436 | HANDLE hnd = (HANDLE) _get_osfhandle (fd); | |
4437 | OVERLAPPED *ovl = &fd_info[fd].cp->ovl_write; | |
4438 | HANDLE wait_hnd[2] = { interrupt_handle, ovl->hEvent }; | |
4439 | DWORD active = 0; | |
4440 | ||
4441 | if (!WriteFile (hnd, buffer, count, (DWORD*) &nchars, ovl)) | |
4442 | { | |
4443 | if (GetLastError () != ERROR_IO_PENDING) | |
4444 | { | |
4445 | errno = EIO; | |
4446 | return -1; | |
4447 | } | |
4448 | if (detect_input_pending ()) | |
4449 | active = MsgWaitForMultipleObjects (2, wait_hnd, FALSE, INFINITE, | |
4450 | QS_ALLINPUT); | |
4451 | else | |
4452 | active = WaitForMultipleObjects (2, wait_hnd, FALSE, INFINITE); | |
4453 | if (active == WAIT_OBJECT_0) | |
4454 | { /* User pressed C-g, cancel write, then leave. Don't bother | |
4455 | cleaning up as we may only get stuck in buggy drivers. */ | |
4456 | PurgeComm (hnd, PURGE_TXABORT | PURGE_TXCLEAR); | |
4457 | CancelIo (hnd); | |
4458 | errno = EIO; | |
4459 | return -1; | |
4460 | } | |
4461 | if (active == WAIT_OBJECT_0 + 1 | |
4462 | && !GetOverlappedResult (hnd, ovl, (DWORD*) &nchars, TRUE)) | |
4463 | { | |
4464 | errno = EIO; | |
4465 | return -1; | |
4466 | } | |
4467 | } | |
4468 | } | |
4469 | else | |
480b0c5b | 4470 | #ifdef HAVE_SOCKETS |
7559f399 | 4471 | if (fd < MAXDESC && fd_info[fd].flags & FILE_SOCKET) |
480b0c5b | 4472 | { |
30a32e0e | 4473 | unsigned long nblock = 0; |
f249a012 | 4474 | if (winsock_lib == NULL) abort (); |
30a32e0e JR |
4475 | |
4476 | /* TODO: implement select() properly so non-blocking I/O works. */ | |
4477 | /* For now, make sure the write blocks. */ | |
4478 | if (fd_info[fd].flags & FILE_NDELAY) | |
4479 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4480 | ||
480b0c5b | 4481 | nchars = pfn_send (SOCK_HANDLE (fd), buffer, count, 0); |
30a32e0e JR |
4482 | |
4483 | /* Set the socket back to non-blocking if it was before, | |
4484 | for other operations that support it. */ | |
4485 | if (fd_info[fd].flags & FILE_NDELAY) | |
4486 | { | |
4487 | nblock = 1; | |
4488 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4489 | } | |
4490 | ||
480b0c5b GV |
4491 | if (nchars == SOCKET_ERROR) |
4492 | { | |
670773af | 4493 | DebPrint(("sys_write.send failed with error %d on socket %ld\n", |
480b0c5b GV |
4494 | pfn_WSAGetLastError (), SOCK_HANDLE (fd))); |
4495 | set_errno (); | |
4496 | } | |
4497 | } | |
4498 | else | |
4499 | #endif | |
4500 | nchars = _write (fd, buffer, count); | |
4501 | ||
4502 | return nchars; | |
4503 | } | |
4504 | ||
f52eb3ef GV |
4505 | static void |
4506 | check_windows_init_file () | |
4507 | { | |
4508 | extern int noninteractive, inhibit_window_system; | |
4509 | ||
4510 | /* A common indication that Emacs is not installed properly is when | |
4511 | it cannot find the Windows installation file. If this file does | |
4512 | not exist in the expected place, tell the user. */ | |
4513 | ||
177c0ea7 | 4514 | if (!noninteractive && !inhibit_window_system) |
d54abccd GV |
4515 | { |
4516 | extern Lisp_Object Vwindow_system, Vload_path, Qfile_exists_p; | |
a0b9c838 | 4517 | Lisp_Object objs[2]; |
96ef7d42 | 4518 | Lisp_Object full_load_path; |
d54abccd GV |
4519 | Lisp_Object init_file; |
4520 | int fd; | |
f52eb3ef | 4521 | |
a0b9c838 GV |
4522 | objs[0] = Vload_path; |
4523 | objs[1] = decode_env_path (0, (getenv ("EMACSLOADPATH"))); | |
4524 | full_load_path = Fappend (2, objs); | |
d54abccd | 4525 | init_file = build_string ("term/w32-win"); |
c50a2aa6 | 4526 | fd = openp (full_load_path, init_file, Fget_load_suffixes (), NULL, Qnil); |
177c0ea7 | 4527 | if (fd < 0) |
d54abccd | 4528 | { |
96ef7d42 | 4529 | Lisp_Object load_path_print = Fprin1_to_string (full_load_path, Qnil); |
d5db4077 KR |
4530 | char *init_file_name = SDATA (init_file); |
4531 | char *load_path = SDATA (load_path_print); | |
acc23b87 KS |
4532 | char *buffer = alloca (1024 |
4533 | + strlen (init_file_name) | |
4534 | + strlen (load_path)); | |
d54abccd | 4535 | |
177c0ea7 | 4536 | sprintf (buffer, |
d54abccd GV |
4537 | "The Emacs Windows initialization file \"%s.el\" " |
4538 | "could not be found in your Emacs installation. " | |
4539 | "Emacs checked the following directories for this file:\n" | |
4540 | "\n%s\n\n" | |
4541 | "When Emacs cannot find this file, it usually means that it " | |
4542 | "was not installed properly, or its distribution file was " | |
4543 | "not unpacked properly.\nSee the README.W32 file in the " | |
4544 | "top-level Emacs directory for more information.", | |
4545 | init_file_name, load_path); | |
4546 | MessageBox (NULL, | |
4547 | buffer, | |
4548 | "Emacs Abort Dialog", | |
4549 | MB_OK | MB_ICONEXCLAMATION | MB_TASKMODAL); | |
f52eb3ef GV |
4550 | /* Use the low-level Emacs abort. */ |
4551 | #undef abort | |
d54abccd GV |
4552 | abort (); |
4553 | } | |
4554 | else | |
4555 | { | |
a302c7ae | 4556 | _close (fd); |
d54abccd | 4557 | } |
f52eb3ef | 4558 | } |
f52eb3ef | 4559 | } |
480b0c5b GV |
4560 | |
4561 | void | |
4562 | term_ntproc () | |
4563 | { | |
4564 | #ifdef HAVE_SOCKETS | |
4565 | /* shutdown the socket interface if necessary */ | |
4566 | term_winsock (); | |
4567 | #endif | |
52c7f9ee JR |
4568 | |
4569 | term_w32select (); | |
480b0c5b GV |
4570 | } |
4571 | ||
4572 | void | |
4573 | init_ntproc () | |
4574 | { | |
4575 | #ifdef HAVE_SOCKETS | |
f249a012 RS |
4576 | /* Initialise the socket interface now if available and requested by |
4577 | the user by defining PRELOAD_WINSOCK; otherwise loading will be | |
fbd6baed | 4578 | delayed until open-network-stream is called (w32-has-winsock can |
f249a012 RS |
4579 | also be used to dynamically load or reload winsock). |
4580 | ||
4581 | Conveniently, init_environment is called before us, so | |
4582 | PRELOAD_WINSOCK can be set in the registry. */ | |
4583 | ||
4584 | /* Always initialize this correctly. */ | |
4585 | winsock_lib = NULL; | |
4586 | ||
4587 | if (getenv ("PRELOAD_WINSOCK") != NULL) | |
4588 | init_winsock (TRUE); | |
480b0c5b GV |
4589 | #endif |
4590 | ||
4591 | /* Initial preparation for subprocess support: replace our standard | |
4592 | handles with non-inheritable versions. */ | |
4593 | { | |
4594 | HANDLE parent; | |
4595 | HANDLE stdin_save = INVALID_HANDLE_VALUE; | |
4596 | HANDLE stdout_save = INVALID_HANDLE_VALUE; | |
4597 | HANDLE stderr_save = INVALID_HANDLE_VALUE; | |
4598 | ||
4599 | parent = GetCurrentProcess (); | |
4600 | ||
4601 | /* ignore errors when duplicating and closing; typically the | |
4602 | handles will be invalid when running as a gui program. */ | |
177c0ea7 JB |
4603 | DuplicateHandle (parent, |
4604 | GetStdHandle (STD_INPUT_HANDLE), | |
480b0c5b | 4605 | parent, |
177c0ea7 JB |
4606 | &stdin_save, |
4607 | 0, | |
4608 | FALSE, | |
480b0c5b | 4609 | DUPLICATE_SAME_ACCESS); |
177c0ea7 | 4610 | |
480b0c5b GV |
4611 | DuplicateHandle (parent, |
4612 | GetStdHandle (STD_OUTPUT_HANDLE), | |
4613 | parent, | |
4614 | &stdout_save, | |
4615 | 0, | |
4616 | FALSE, | |
4617 | DUPLICATE_SAME_ACCESS); | |
177c0ea7 | 4618 | |
480b0c5b GV |
4619 | DuplicateHandle (parent, |
4620 | GetStdHandle (STD_ERROR_HANDLE), | |
4621 | parent, | |
4622 | &stderr_save, | |
4623 | 0, | |
4624 | FALSE, | |
4625 | DUPLICATE_SAME_ACCESS); | |
177c0ea7 | 4626 | |
480b0c5b GV |
4627 | fclose (stdin); |
4628 | fclose (stdout); | |
4629 | fclose (stderr); | |
4630 | ||
4631 | if (stdin_save != INVALID_HANDLE_VALUE) | |
4632 | _open_osfhandle ((long) stdin_save, O_TEXT); | |
4633 | else | |
76b3903d GV |
4634 | _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY); |
4635 | _fdopen (0, "r"); | |
480b0c5b GV |
4636 | |
4637 | if (stdout_save != INVALID_HANDLE_VALUE) | |
4638 | _open_osfhandle ((long) stdout_save, O_TEXT); | |
4639 | else | |
76b3903d GV |
4640 | _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); |
4641 | _fdopen (1, "w"); | |
480b0c5b GV |
4642 | |
4643 | if (stderr_save != INVALID_HANDLE_VALUE) | |
4644 | _open_osfhandle ((long) stderr_save, O_TEXT); | |
4645 | else | |
76b3903d GV |
4646 | _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); |
4647 | _fdopen (2, "w"); | |
480b0c5b GV |
4648 | } |
4649 | ||
4650 | /* unfortunately, atexit depends on implementation of malloc */ | |
4651 | /* atexit (term_ntproc); */ | |
4652 | signal (SIGABRT, term_ntproc); | |
76b3903d GV |
4653 | |
4654 | /* determine which drives are fixed, for GetCachedVolumeInformation */ | |
4655 | { | |
4656 | /* GetDriveType must have trailing backslash. */ | |
4657 | char drive[] = "A:\\"; | |
4658 | ||
4659 | /* Loop over all possible drive letters */ | |
4660 | while (*drive <= 'Z') | |
4661 | { | |
4662 | /* Record if this drive letter refers to a fixed drive. */ | |
177c0ea7 | 4663 | fixed_drives[DRIVE_INDEX (*drive)] = |
76b3903d GV |
4664 | (GetDriveType (drive) == DRIVE_FIXED); |
4665 | ||
4666 | (*drive)++; | |
4667 | } | |
a302c7ae AI |
4668 | |
4669 | /* Reset the volume info cache. */ | |
4670 | volume_cache = NULL; | |
76b3903d | 4671 | } |
177c0ea7 | 4672 | |
d54abccd GV |
4673 | /* Check to see if Emacs has been installed correctly. */ |
4674 | check_windows_init_file (); | |
480b0c5b GV |
4675 | } |
4676 | ||
a8c3a596 JR |
4677 | /* |
4678 | shutdown_handler ensures that buffers' autosave files are | |
4679 | up to date when the user logs off, or the system shuts down. | |
4680 | */ | |
4681 | BOOL WINAPI shutdown_handler(DWORD type) | |
4682 | { | |
4683 | /* Ctrl-C and Ctrl-Break are already suppressed, so don't handle them. */ | |
4684 | if (type == CTRL_CLOSE_EVENT /* User closes console window. */ | |
4685 | || type == CTRL_LOGOFF_EVENT /* User logs off. */ | |
4686 | || type == CTRL_SHUTDOWN_EVENT) /* User shutsdown. */ | |
4687 | { | |
4688 | /* Shut down cleanly, making sure autosave files are up to date. */ | |
4689 | shut_down_emacs (0, 0, Qnil); | |
4690 | } | |
4691 | ||
7046f191 | 4692 | /* Allow other handlers to handle this signal. */ |
a8c3a596 JR |
4693 | return FALSE; |
4694 | } | |
4695 | ||
9785d95b BK |
4696 | /* |
4697 | globals_of_w32 is used to initialize those global variables that | |
4698 | must always be initialized on startup even when the global variable | |
4699 | initialized is non zero (see the function main in emacs.c). | |
4700 | */ | |
9bfb11f9 KS |
4701 | void |
4702 | globals_of_w32 () | |
9785d95b | 4703 | { |
74258518 JR |
4704 | HMODULE kernel32 = GetModuleHandle ("kernel32.dll"); |
4705 | ||
4706 | get_process_times_fn = (GetProcessTimes_Proc) | |
4707 | GetProcAddress (kernel32, "GetProcessTimes"); | |
4708 | ||
9785d95b BK |
4709 | g_b_init_is_windows_9x = 0; |
4710 | g_b_init_open_process_token = 0; | |
4711 | g_b_init_get_token_information = 0; | |
4712 | g_b_init_lookup_account_sid = 0; | |
4713 | g_b_init_get_sid_identifier_authority = 0; | |
9d95a291 EZ |
4714 | g_b_init_get_sid_sub_authority = 0; |
4715 | g_b_init_get_sid_sub_authority_count = 0; | |
8aaaec6b EZ |
4716 | g_b_init_get_file_security = 0; |
4717 | g_b_init_get_security_descriptor_owner = 0; | |
4718 | g_b_init_get_security_descriptor_group = 0; | |
4719 | g_b_init_is_valid_sid = 0; | |
a8c3a596 JR |
4720 | /* The following sets a handler for shutdown notifications for |
4721 | console apps. This actually applies to Emacs in both console and | |
4722 | GUI modes, since we had to fool windows into thinking emacs is a | |
4723 | console application to get console mode to work. */ | |
4724 | SetConsoleCtrlHandler(shutdown_handler, TRUE); | |
8aaaec6b EZ |
4725 | |
4726 | /* "None" is the default group name on standalone workstations. */ | |
4727 | strcpy (dflt_group_name, "None"); | |
9785d95b BK |
4728 | } |
4729 | ||
d888760c GM |
4730 | /* For make-serial-process */ |
4731 | int serial_open (char *port) | |
4732 | { | |
4733 | HANDLE hnd; | |
4734 | child_process *cp; | |
4735 | int fd = -1; | |
4736 | ||
4737 | hnd = CreateFile (port, GENERIC_READ | GENERIC_WRITE, 0, 0, | |
4738 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); | |
4739 | if (hnd == INVALID_HANDLE_VALUE) | |
4740 | error ("Could not open %s", port); | |
4741 | fd = (int) _open_osfhandle ((int) hnd, 0); | |
4742 | if (fd == -1) | |
4743 | error ("Could not open %s", port); | |
4744 | ||
4745 | cp = new_child (); | |
4746 | if (!cp) | |
4747 | error ("Could not create child process"); | |
4748 | cp->fd = fd; | |
4749 | cp->status = STATUS_READ_ACKNOWLEDGED; | |
4750 | fd_info[ fd ].hnd = hnd; | |
4751 | fd_info[ fd ].flags |= | |
4752 | FILE_READ | FILE_WRITE | FILE_BINARY | FILE_SERIAL; | |
4753 | if (fd_info[ fd ].cp != NULL) | |
4754 | { | |
4755 | error ("fd_info[fd = %d] is already in use", fd); | |
4756 | } | |
4757 | fd_info[ fd ].cp = cp; | |
4758 | cp->ovl_read.hEvent = CreateEvent (NULL, TRUE, FALSE, NULL); | |
4759 | if (cp->ovl_read.hEvent == NULL) | |
4760 | error ("Could not create read event"); | |
4761 | cp->ovl_write.hEvent = CreateEvent (NULL, TRUE, FALSE, NULL); | |
4762 | if (cp->ovl_write.hEvent == NULL) | |
4763 | error ("Could not create write event"); | |
4764 | ||
4765 | return fd; | |
4766 | } | |
4767 | ||
4768 | /* For serial-process-configure */ | |
4769 | void | |
4770 | serial_configure (struct Lisp_Process *p, | |
4771 | Lisp_Object contact) | |
4772 | { | |
4773 | Lisp_Object childp2 = Qnil; | |
4774 | Lisp_Object tem = Qnil; | |
4775 | HANDLE hnd; | |
4776 | DCB dcb; | |
4777 | COMMTIMEOUTS ct; | |
4778 | char summary[4] = "???"; /* This usually becomes "8N1". */ | |
4779 | ||
4780 | if ((fd_info[ p->outfd ].flags & FILE_SERIAL) == 0) | |
4781 | error ("Not a serial process"); | |
4782 | hnd = fd_info[ p->outfd ].hnd; | |
4783 | ||
4784 | childp2 = Fcopy_sequence (p->childp); | |
4785 | ||
4786 | /* Initialize timeouts for blocking read and blocking write. */ | |
4787 | if (!GetCommTimeouts (hnd, &ct)) | |
4788 | error ("GetCommTimeouts() failed"); | |
4789 | ct.ReadIntervalTimeout = 0; | |
4790 | ct.ReadTotalTimeoutMultiplier = 0; | |
4791 | ct.ReadTotalTimeoutConstant = 0; | |
4792 | ct.WriteTotalTimeoutMultiplier = 0; | |
4793 | ct.WriteTotalTimeoutConstant = 0; | |
4794 | if (!SetCommTimeouts (hnd, &ct)) | |
4795 | error ("SetCommTimeouts() failed"); | |
4796 | /* Read port attributes and prepare default configuration. */ | |
4797 | memset (&dcb, 0, sizeof (dcb)); | |
4798 | dcb.DCBlength = sizeof (DCB); | |
4799 | if (!GetCommState (hnd, &dcb)) | |
4800 | error ("GetCommState() failed"); | |
4801 | dcb.fBinary = TRUE; | |
4802 | dcb.fNull = FALSE; | |
4803 | dcb.fAbortOnError = FALSE; | |
4804 | /* dcb.XonLim and dcb.XoffLim are set by GetCommState() */ | |
4805 | dcb.ErrorChar = 0; | |
4806 | dcb.EofChar = 0; | |
4807 | dcb.EvtChar = 0; | |
4808 | ||
4809 | /* Configure speed. */ | |
4810 | if (!NILP (Fplist_member (contact, QCspeed))) | |
4811 | tem = Fplist_get (contact, QCspeed); | |
4812 | else | |
4813 | tem = Fplist_get (p->childp, QCspeed); | |
4814 | CHECK_NUMBER (tem); | |
4815 | dcb.BaudRate = XINT (tem); | |
4816 | childp2 = Fplist_put (childp2, QCspeed, tem); | |
4817 | ||
4818 | /* Configure bytesize. */ | |
4819 | if (!NILP (Fplist_member (contact, QCbytesize))) | |
4820 | tem = Fplist_get (contact, QCbytesize); | |
4821 | else | |
4822 | tem = Fplist_get (p->childp, QCbytesize); | |
4823 | if (NILP (tem)) | |
4824 | tem = make_number (8); | |
4825 | CHECK_NUMBER (tem); | |
4826 | if (XINT (tem) != 7 && XINT (tem) != 8) | |
4827 | error (":bytesize must be nil (8), 7, or 8"); | |
4828 | dcb.ByteSize = XINT (tem); | |
4829 | summary[0] = XINT (tem) + '0'; | |
4830 | childp2 = Fplist_put (childp2, QCbytesize, tem); | |
4831 | ||
4832 | /* Configure parity. */ | |
4833 | if (!NILP (Fplist_member (contact, QCparity))) | |
4834 | tem = Fplist_get (contact, QCparity); | |
4835 | else | |
4836 | tem = Fplist_get (p->childp, QCparity); | |
4837 | if (!NILP (tem) && !EQ (tem, Qeven) && !EQ (tem, Qodd)) | |
4838 | error (":parity must be nil (no parity), `even', or `odd'"); | |
4839 | dcb.fParity = FALSE; | |
4840 | dcb.Parity = NOPARITY; | |
4841 | dcb.fErrorChar = FALSE; | |
4842 | if (NILP (tem)) | |
4843 | { | |
4844 | summary[1] = 'N'; | |
4845 | } | |
4846 | else if (EQ (tem, Qeven)) | |
4847 | { | |
4848 | summary[1] = 'E'; | |
4849 | dcb.fParity = TRUE; | |
4850 | dcb.Parity = EVENPARITY; | |
4851 | dcb.fErrorChar = TRUE; | |
4852 | } | |
4853 | else if (EQ (tem, Qodd)) | |
4854 | { | |
4855 | summary[1] = 'O'; | |
4856 | dcb.fParity = TRUE; | |
4857 | dcb.Parity = ODDPARITY; | |
4858 | dcb.fErrorChar = TRUE; | |
4859 | } | |
4860 | childp2 = Fplist_put (childp2, QCparity, tem); | |
4861 | ||
4862 | /* Configure stopbits. */ | |
4863 | if (!NILP (Fplist_member (contact, QCstopbits))) | |
4864 | tem = Fplist_get (contact, QCstopbits); | |
4865 | else | |
4866 | tem = Fplist_get (p->childp, QCstopbits); | |
4867 | if (NILP (tem)) | |
4868 | tem = make_number (1); | |
4869 | CHECK_NUMBER (tem); | |
4870 | if (XINT (tem) != 1 && XINT (tem) != 2) | |
4871 | error (":stopbits must be nil (1 stopbit), 1, or 2"); | |
4872 | summary[2] = XINT (tem) + '0'; | |
4873 | if (XINT (tem) == 1) | |
4874 | dcb.StopBits = ONESTOPBIT; | |
4875 | else if (XINT (tem) == 2) | |
4876 | dcb.StopBits = TWOSTOPBITS; | |
4877 | childp2 = Fplist_put (childp2, QCstopbits, tem); | |
4878 | ||
4879 | /* Configure flowcontrol. */ | |
4880 | if (!NILP (Fplist_member (contact, QCflowcontrol))) | |
4881 | tem = Fplist_get (contact, QCflowcontrol); | |
4882 | else | |
4883 | tem = Fplist_get (p->childp, QCflowcontrol); | |
4884 | if (!NILP (tem) && !EQ (tem, Qhw) && !EQ (tem, Qsw)) | |
4885 | error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'"); | |
4886 | dcb.fOutxCtsFlow = FALSE; | |
4887 | dcb.fOutxDsrFlow = FALSE; | |
4888 | dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
4889 | dcb.fDsrSensitivity = FALSE; | |
4890 | dcb.fTXContinueOnXoff = FALSE; | |
4891 | dcb.fOutX = FALSE; | |
4892 | dcb.fInX = FALSE; | |
4893 | dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
4894 | dcb.XonChar = 17; /* Control-Q */ | |
4895 | dcb.XoffChar = 19; /* Control-S */ | |
4896 | if (NILP (tem)) | |
4897 | { | |
4898 | /* Already configured. */ | |
4899 | } | |
4900 | else if (EQ (tem, Qhw)) | |
4901 | { | |
4902 | dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
4903 | dcb.fOutxCtsFlow = TRUE; | |
4904 | } | |
4905 | else if (EQ (tem, Qsw)) | |
4906 | { | |
4907 | dcb.fOutX = TRUE; | |
4908 | dcb.fInX = TRUE; | |
4909 | } | |
4910 | childp2 = Fplist_put (childp2, QCflowcontrol, tem); | |
4911 | ||
4912 | /* Activate configuration. */ | |
4913 | if (!SetCommState (hnd, &dcb)) | |
4914 | error ("SetCommState() failed"); | |
4915 | ||
4916 | childp2 = Fplist_put (childp2, QCsummary, build_string (summary)); | |
4917 | p->childp = childp2; | |
4918 | } | |
4919 | ||
aa5ee2a3 | 4920 | /* end of w32.c */ |
ab5796a9 MB |
4921 | |
4922 | /* arch-tag: 90442dd3-37be-482b-b272-ac752e3049f1 | |
4923 | (do not change this comment) */ |